Home / 83,335.12-124,856.84-69,384.76

Finding the Fourth Proportional to 83,335.12, 124,856.84 and 69,384.76

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Solution

The fourth proportional to 83,335.12, 124,856.84 and 69,384.76 is: 103,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,335.12 : 124,856.84 = 69,384.76 : x
  2. Step 2: Convert to fraction form
    83,335.12/124,856.84 = 69,384.76/x
  3. Step 3: Cross multiply
    83,335.12x = 124,856.84 × 69,384.76
  4. Step 4: Simplify right side
    83,335.12x = 8,663,161,877.76
  5. Step 5: Solve for x
    x = 8,663,161,877.76/83,335.12
  6. Step 6: Final answer
    x = 103,955.71

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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.