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Finding the Fourth Proportional to 132,697.32, 183,114.90 and 75,321.42

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Solution

The fourth proportional to 132,697.32, 183,114.90 and 75,321.42 is: 103,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,697.32 : 183,114.90 = 75,321.42 : x
  2. Step 2: Convert to fraction form
    132,697.32/183,114.90 = 75,321.42/x
  3. Step 3: Cross multiply
    132,697.32x = 183,114.90 × 75,321.42
  4. Step 4: Simplify right side
    132,697.32x = 13,792,474,291.16
  5. Step 5: Solve for x
    x = 13,792,474,291.16/132,697.32
  6. Step 6: Final answer
    x = 103,939.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.