Home / 125,631.20-188,446.80-55,647.20

Finding the Fourth Proportional to 125,631.20, 188,446.80 and 55,647.20

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Solution

The fourth proportional to 125,631.20, 188,446.80 and 55,647.20 is: 83,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,631.20 : 188,446.80 = 55,647.20 : x
  2. Step 2: Convert to fraction form
    125,631.20/188,446.80 = 55,647.20/x
  3. Step 3: Cross multiply
    125,631.20x = 188,446.80 × 55,647.20
  4. Step 4: Simplify right side
    125,631.20x = 10,486,536,768.96
  5. Step 5: Solve for x
    x = 10,486,536,768.96/125,631.20
  6. Step 6: Final answer
    x = 83,470.80

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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.