Home / 125,570.20-188,501.10-72,304.60

Finding the Fourth Proportional to 125,570.20, 188,501.10 and 72,304.60

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Solution

The fourth proportional to 125,570.20, 188,501.10 and 72,304.60 is: 108,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,570.20 : 188,501.10 = 72,304.60 : x
  2. Step 2: Convert to fraction form
    125,570.20/188,501.10 = 72,304.60/x
  3. Step 3: Cross multiply
    125,570.20x = 188,501.10 × 72,304.60
  4. Step 4: Simplify right side
    125,570.20x = 13,629,496,635.06
  5. Step 5: Solve for x
    x = 13,629,496,635.06/125,570.20
  6. Step 6: Final answer
    x = 108,540.85

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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.