Home / 132,449.69-182,779.32-72,020.38

Finding the Fourth Proportional to 132,449.69, 182,779.32 and 72,020.38

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Solution

The fourth proportional to 132,449.69, 182,779.32 and 72,020.38 is: 99,387.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,449.69 : 182,779.32 = 72,020.38 : x
  2. Step 2: Convert to fraction form
    132,449.69/182,779.32 = 72,020.38/x
  3. Step 3: Cross multiply
    132,449.69x = 182,779.32 × 72,020.38
  4. Step 4: Simplify right side
    132,449.69x = 13,163,836,082.54
  5. Step 5: Solve for x
    x = 13,163,836,082.54/132,449.69
  6. Step 6: Final answer
    x = 99,387.44

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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.