Home / 123,382.08-185,112-53,294.40

Finding the Fourth Proportional to 123,382.08, 185,112 and 53,294.40

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Solution

The fourth proportional to 123,382.08, 185,112 and 53,294.40 is: 79,958.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,382.08 : 185,112 = 53,294.40 : x
  2. Step 2: Convert to fraction form
    123,382.08/185,112 = 53,294.40/x
  3. Step 3: Cross multiply
    123,382.08x = 185,112 × 53,294.40
  4. Step 4: Simplify right side
    123,382.08x = 9,865,432,972.80
  5. Step 5: Solve for x
    x = 9,865,432,972.80/123,382.08
  6. Step 6: Final answer
    x = 79,958.39

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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.