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Finding the Fourth Proportional to 125,878.92, 188,800.16 and 37,128.04

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Solution

The fourth proportional to 125,878.92, 188,800.16 and 37,128.04 is: 55,686.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,878.92 : 188,800.16 = 37,128.04 : x
  2. Step 2: Convert to fraction form
    125,878.92/188,800.16 = 37,128.04/x
  3. Step 3: Cross multiply
    125,878.92x = 188,800.16 × 37,128.04
  4. Step 4: Simplify right side
    125,878.92x = 7,009,779,892.49
  5. Step 5: Solve for x
    x = 7,009,779,892.49/125,878.92
  6. Step 6: Final answer
    x = 55,686.69

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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.