Home / 132,415.20-182,732.64-71,985.84

Finding the Fourth Proportional to 132,415.20, 182,732.64 and 71,985.84

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Solution

The fourth proportional to 132,415.20, 182,732.64 and 71,985.84 is: 99,340.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,415.20 : 182,732.64 = 71,985.84 : x
  2. Step 2: Convert to fraction form
    132,415.20/182,732.64 = 71,985.84/x
  3. Step 3: Cross multiply
    132,415.20x = 182,732.64 × 71,985.84
  4. Step 4: Simplify right side
    132,415.20x = 13,154,162,585.82
  5. Step 5: Solve for x
    x = 13,154,162,585.82/132,415.20
  6. Step 6: Final answer
    x = 99,340.28

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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.