Home / 142,862.84-197,149.14-82,432.76

Finding the Fourth Proportional to 142,862.84, 197,149.14 and 82,432.76

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Solution

The fourth proportional to 142,862.84, 197,149.14 and 82,432.76 is: 113,756.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,862.84 : 197,149.14 = 82,432.76 : x
  2. Step 2: Convert to fraction form
    142,862.84/197,149.14 = 82,432.76/x
  3. Step 3: Cross multiply
    142,862.84x = 197,149.14 × 82,432.76
  4. Step 4: Simplify right side
    142,862.84x = 16,251,547,741.83
  5. Step 5: Solve for x
    x = 16,251,547,741.83/142,862.84
  6. Step 6: Final answer
    x = 113,756.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.