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Finding the Fourth Proportional to 123,529.70, 185,294.55 and 61,321.70

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Solution

The fourth proportional to 123,529.70, 185,294.55 and 61,321.70 is: 91,982.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,529.70 : 185,294.55 = 61,321.70 : x
  2. Step 2: Convert to fraction form
    123,529.70/185,294.55 = 61,321.70/x
  3. Step 3: Cross multiply
    123,529.70x = 185,294.55 × 61,321.70
  4. Step 4: Simplify right side
    123,529.70x = 11,362,576,806.74
  5. Step 5: Solve for x
    x = 11,362,576,806.74/123,529.70
  6. Step 6: Final answer
    x = 91,982.55

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Similar ratio
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1.5x scale

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.