Home / 145,428.80-218,143.20-110,177.60

Finding the Fourth Proportional to 145,428.80, 218,143.20 and 110,177.60

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Solution

The fourth proportional to 145,428.80, 218,143.20 and 110,177.60 is: 165,266.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,428.80 : 218,143.20 = 110,177.60 : x
  2. Step 2: Convert to fraction form
    145,428.80/218,143.20 = 110,177.60/x
  3. Step 3: Cross multiply
    145,428.80x = 218,143.20 × 110,177.60
  4. Step 4: Simplify right side
    145,428.80x = 24,034,494,232.32
  5. Step 5: Solve for x
    x = 24,034,494,232.32/145,428.80
  6. Step 6: Final answer
    x = 165,266.40

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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.