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Finding the Fourth Proportional to 91,223.52, 136,882.62 and 69,030.24

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Solution

The fourth proportional to 91,223.52, 136,882.62 and 69,030.24 is: 103,581.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,223.52 : 136,882.62 = 69,030.24 : x
  2. Step 2: Convert to fraction form
    91,223.52/136,882.62 = 69,030.24/x
  3. Step 3: Cross multiply
    91,223.52x = 136,882.62 × 69,030.24
  4. Step 4: Simplify right side
    91,223.52x = 9,449,040,110.43
  5. Step 5: Solve for x
    x = 9,449,040,110.43/91,223.52
  6. Step 6: Final answer
    x = 103,581.18

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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.