Home / 156,470.40-234,706.56-38,142.72

Finding the Fourth Proportional to 156,470.40, 234,706.56 and 38,142.72

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Solution

The fourth proportional to 156,470.40, 234,706.56 and 38,142.72 is: 57,214.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,470.40 : 234,706.56 = 38,142.72 : x
  2. Step 2: Convert to fraction form
    156,470.40/234,706.56 = 38,142.72/x
  3. Step 3: Cross multiply
    156,470.40x = 234,706.56 × 38,142.72
  4. Step 4: Simplify right side
    156,470.40x = 8,952,346,600.24
  5. Step 5: Solve for x
    x = 8,952,346,600.24/156,470.40
  6. Step 6: Final answer
    x = 57,214.31

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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.