Home / 125,165.16-187,789.65-40,929.21

Finding the Fourth Proportional to 125,165.16, 187,789.65 and 40,929.21

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Solution

The fourth proportional to 125,165.16, 187,789.65 and 40,929.21 is: 61,407.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,165.16 : 187,789.65 = 40,929.21 : x
  2. Step 2: Convert to fraction form
    125,165.16/187,789.65 = 40,929.21/x
  3. Step 3: Cross multiply
    125,165.16x = 187,789.65 × 40,929.21
  4. Step 4: Simplify right side
    125,165.16x = 7,686,082,020.68
  5. Step 5: Solve for x
    x = 7,686,082,020.68/125,165.16
  6. Step 6: Final answer
    x = 61,407.52

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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.