Home / 161,828.80-242,743.20-105,841.60

Finding the Fourth Proportional to 161,828.80, 242,743.20 and 105,841.60

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Solution

The fourth proportional to 161,828.80, 242,743.20 and 105,841.60 is: 158,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,828.80 : 242,743.20 = 105,841.60 : x
  2. Step 2: Convert to fraction form
    161,828.80/242,743.20 = 105,841.60/x
  3. Step 3: Cross multiply
    161,828.80x = 242,743.20 × 105,841.60
  4. Step 4: Simplify right side
    161,828.80x = 25,692,328,677.12
  5. Step 5: Solve for x
    x = 25,692,328,677.12/161,828.80
  6. Step 6: Final answer
    x = 158,762.40

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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.