Home / 132,442.10-182,765.06-72,012.78

Finding the Fourth Proportional to 132,442.10, 182,765.06 and 72,012.78

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Solution

The fourth proportional to 132,442.10, 182,765.06 and 72,012.78 is: 99,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,442.10 : 182,765.06 = 72,012.78 : x
  2. Step 2: Convert to fraction form
    132,442.10/182,765.06 = 72,012.78/x
  3. Step 3: Cross multiply
    132,442.10x = 182,765.06 × 72,012.78
  4. Step 4: Simplify right side
    132,442.10x = 13,161,420,057.47
  5. Step 5: Solve for x
    x = 13,161,420,057.47/132,442.10
  6. Step 6: Final answer
    x = 99,374.90

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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.