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Finding the Fourth Proportional to 132,416.32, 182,732.32 and 71,988.48

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Solution

The fourth proportional to 132,416.32, 182,732.32 and 71,988.48 is: 99,342.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,416.32 : 182,732.32 = 71,988.48 : x
  2. Step 2: Convert to fraction form
    132,416.32/182,732.32 = 71,988.48/x
  3. Step 3: Cross multiply
    132,416.32x = 182,732.32 × 71,988.48
  4. Step 4: Simplify right side
    132,416.32x = 13,154,621,963.67
  5. Step 5: Solve for x
    x = 13,154,621,963.67/132,416.32
  6. Step 6: Final answer
    x = 99,342.91

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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.