Home / 124,530.50-186,864.92-77,171.31

Finding the Fourth Proportional to 124,530.50, 186,864.92 and 77,171.31

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Solution

The fourth proportional to 124,530.50, 186,864.92 and 77,171.31 is: 115,799.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,530.50 : 186,864.92 = 77,171.31 : x
  2. Step 2: Convert to fraction form
    124,530.50/186,864.92 = 77,171.31/x
  3. Step 3: Cross multiply
    124,530.50x = 186,864.92 × 77,171.31
  4. Step 4: Simplify right side
    124,530.50x = 14,420,610,283.59
  5. Step 5: Solve for x
    x = 14,420,610,283.59/124,530.50
  6. Step 6: Final answer
    x = 115,799.83

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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.