Home / 125,438.76-188,013.15-57,829.55

Finding the Fourth Proportional to 125,438.76, 188,013.15 and 57,829.55

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Solution

The fourth proportional to 125,438.76, 188,013.15 and 57,829.55 is: 86,677.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,438.76 : 188,013.15 = 57,829.55 : x
  2. Step 2: Convert to fraction form
    125,438.76/188,013.15 = 57,829.55/x
  3. Step 3: Cross multiply
    125,438.76x = 188,013.15 × 57,829.55
  4. Step 4: Simplify right side
    125,438.76x = 10,872,714,918.52
  5. Step 5: Solve for x
    x = 10,872,714,918.52/125,438.76
  6. Step 6: Final answer
    x = 86,677.47

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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.