Home / 142,293.28-213,432.20-72,170.76

Finding the Fourth Proportional to 142,293.28, 213,432.20 and 72,170.76

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Solution

The fourth proportional to 142,293.28, 213,432.20 and 72,170.76 is: 108,252.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,293.28 : 213,432.20 = 72,170.76 : x
  2. Step 2: Convert to fraction form
    142,293.28/213,432.20 = 72,170.76/x
  3. Step 3: Cross multiply
    142,293.28x = 213,432.20 × 72,170.76
  4. Step 4: Simplify right side
    142,293.28x = 15,403,564,082.47
  5. Step 5: Solve for x
    x = 15,403,564,082.47/142,293.28
  6. Step 6: Final answer
    x = 108,252.22

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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.