Home / 125,187.32-187,781.30-31,693.08

Finding the Fourth Proportional to 125,187.32, 187,781.30 and 31,693.08

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Solution

The fourth proportional to 125,187.32, 187,781.30 and 31,693.08 is: 47,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,187.32 : 187,781.30 = 31,693.08 : x
  2. Step 2: Convert to fraction form
    125,187.32/187,781.30 = 31,693.08/x
  3. Step 3: Cross multiply
    125,187.32x = 187,781.30 × 31,693.08
  4. Step 4: Simplify right side
    125,187.32x = 5,951,367,763.40
  5. Step 5: Solve for x
    x = 5,951,367,763.40/125,187.32
  6. Step 6: Final answer
    x = 47,539.70

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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.