Home / 134,869.28-186,118.68-74,439.92

Finding the Fourth Proportional to 134,869.28, 186,118.68 and 74,439.92

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Solution

The fourth proportional to 134,869.28, 186,118.68 and 74,439.92 is: 102,726.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,869.28 : 186,118.68 = 74,439.92 : x
  2. Step 2: Convert to fraction form
    134,869.28/186,118.68 = 74,439.92/x
  3. Step 3: Cross multiply
    134,869.28x = 186,118.68 × 74,439.92
  4. Step 4: Simplify right side
    134,869.28x = 13,854,659,649.71
  5. Step 5: Solve for x
    x = 13,854,659,649.71/134,869.28
  6. Step 6: Final answer
    x = 102,726.58

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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.