Home / 125,931.60-188,897.40-124,765.20

Finding the Fourth Proportional to 125,931.60, 188,897.40 and 124,765.20

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Solution

The fourth proportional to 125,931.60, 188,897.40 and 124,765.20 is: 187,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,931.60 : 188,897.40 = 124,765.20 : x
  2. Step 2: Convert to fraction form
    125,931.60/188,897.40 = 124,765.20/x
  3. Step 3: Cross multiply
    125,931.60x = 188,897.40 × 124,765.20
  4. Step 4: Simplify right side
    125,931.60x = 23,567,821,890.48
  5. Step 5: Solve for x
    x = 23,567,821,890.48/125,931.60
  6. Step 6: Final answer
    x = 187,147.80

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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.