Home / 132,538.68-182,903.80-72,109.28

Finding the Fourth Proportional to 132,538.68, 182,903.80 and 72,109.28

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Solution

The fourth proportional to 132,538.68, 182,903.80 and 72,109.28 is: 99,511.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,538.68 : 182,903.80 = 72,109.28 : x
  2. Step 2: Convert to fraction form
    132,538.68/182,903.80 = 72,109.28/x
  3. Step 3: Cross multiply
    132,538.68x = 182,903.80 × 72,109.28
  4. Step 4: Simplify right side
    132,538.68x = 13,189,061,327.26
  5. Step 5: Solve for x
    x = 13,189,061,327.26/132,538.68
  6. Step 6: Final answer
    x = 99,511.04

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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.