Home / 156,427.71-234,711.34-72,142.63

Finding the Fourth Proportional to 156,427.71, 234,711.34 and 72,142.63

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Solution

The fourth proportional to 156,427.71, 234,711.34 and 72,142.63 is: 108,246.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,427.71 : 234,711.34 = 72,142.63 : x
  2. Step 2: Convert to fraction form
    156,427.71/234,711.34 = 72,142.63/x
  3. Step 3: Cross multiply
    156,427.71x = 234,711.34 × 72,142.63
  4. Step 4: Simplify right side
    156,427.71x = 16,932,693,358.42
  5. Step 5: Solve for x
    x = 16,932,693,358.42/156,427.71
  6. Step 6: Final answer
    x = 108,246.12

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1.5x scale

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.