Home / 123,749.40-185,624.10-89,016.60

Finding the Fourth Proportional to 123,749.40, 185,624.10 and 89,016.60

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Solution

The fourth proportional to 123,749.40, 185,624.10 and 89,016.60 is: 133,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,749.40 : 185,624.10 = 89,016.60 : x
  2. Step 2: Convert to fraction form
    123,749.40/185,624.10 = 89,016.60/x
  3. Step 3: Cross multiply
    123,749.40x = 185,624.10 × 89,016.60
  4. Step 4: Simplify right side
    123,749.40x = 16,523,626,260.06
  5. Step 5: Solve for x
    x = 16,523,626,260.06/123,749.40
  6. Step 6: Final answer
    x = 133,524.90

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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.