Home / 120,771,146.80-181,156,720.20-105,654,602.80

Finding the Fourth Proportional to 120,771,146.80, 181,156,720.20 and 105,654,602.80

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Solution

The fourth proportional to 120,771,146.80, 181,156,720.20 and 105,654,602.80 is: 158,481,904.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,771,146.80 : 181,156,720.20 = 105,654,602.80 : x
  2. Step 2: Convert to fraction form
    120,771,146.80/181,156,720.20 = 105,654,602.80/x
  3. Step 3: Cross multiply
    120,771,146.80x = 181,156,720.20 × 105,654,602.80
  4. Step 4: Simplify right side
    120,771,146.80x = 19,140,041,317,281,736
  5. Step 5: Solve for x
    x = 19,140,041,317,281,736/120,771,146.80
  6. Step 6: Final answer
    x = 158,481,904.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.