Home / 119,856.84-165,402.29-66,141.87

Finding the Fourth Proportional to 119,856.84, 165,402.29 and 66,141.87

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Solution

The fourth proportional to 119,856.84, 165,402.29 and 66,141.87 is: 91,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,856.84 : 165,402.29 = 66,141.87 : x
  2. Step 2: Convert to fraction form
    119,856.84/165,402.29 = 66,141.87/x
  3. Step 3: Cross multiply
    119,856.84x = 165,402.29 × 66,141.87
  4. Step 4: Simplify right side
    119,856.84x = 10,940,016,432.17
  5. Step 5: Solve for x
    x = 10,940,016,432.17/119,856.84
  6. Step 6: Final answer
    x = 91,275.70

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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.