Home / 132,412.38-182,732.64-71,987.12

Finding the Fourth Proportional to 132,412.38, 182,732.64 and 71,987.12

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Solution

The fourth proportional to 132,412.38, 182,732.64 and 71,987.12 is: 99,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,412.38 : 182,732.64 = 71,987.12 : x
  2. Step 2: Convert to fraction form
    132,412.38/182,732.64 = 71,987.12/x
  3. Step 3: Cross multiply
    132,412.38x = 182,732.64 × 71,987.12
  4. Step 4: Simplify right side
    132,412.38x = 13,154,396,483.60
  5. Step 5: Solve for x
    x = 13,154,396,483.60/132,412.38
  6. Step 6: Final answer
    x = 99,344.16

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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.