Home / 125,554.28-188,331.42-55,419.62

Finding the Fourth Proportional to 125,554.28, 188,331.42 and 55,419.62

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Solution

The fourth proportional to 125,554.28, 188,331.42 and 55,419.62 is: 83,129.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,554.28 : 188,331.42 = 55,419.62 : x
  2. Step 2: Convert to fraction form
    125,554.28/188,331.42 = 55,419.62/x
  3. Step 3: Cross multiply
    125,554.28x = 188,331.42 × 55,419.62
  4. Step 4: Simplify right side
    125,554.28x = 10,437,255,744.26
  5. Step 5: Solve for x
    x = 10,437,255,744.26/125,554.28
  6. Step 6: Final answer
    x = 83,129.43

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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.