Home / 125,708.08-188,512.70-45,727.06

Finding the Fourth Proportional to 125,708.08, 188,512.70 and 45,727.06

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Solution

The fourth proportional to 125,708.08, 188,512.70 and 45,727.06 is: 68,572.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,708.08 : 188,512.70 = 45,727.06 : x
  2. Step 2: Convert to fraction form
    125,708.08/188,512.70 = 45,727.06/x
  3. Step 3: Cross multiply
    125,708.08x = 188,512.70 × 45,727.06
  4. Step 4: Simplify right side
    125,708.08x = 8,620,131,543.66
  5. Step 5: Solve for x
    x = 8,620,131,543.66/125,708.08
  6. Step 6: Final answer
    x = 68,572.61

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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.