Home / 99,734.67-137,620.20-57,293.19

Finding the Fourth Proportional to 99,734.67, 137,620.20 and 57,293.19

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Solution

The fourth proportional to 99,734.67, 137,620.20 and 57,293.19 is: 79,056.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,734.67 : 137,620.20 = 57,293.19 : x
  2. Step 2: Convert to fraction form
    99,734.67/137,620.20 = 57,293.19/x
  3. Step 3: Cross multiply
    99,734.67x = 137,620.20 × 57,293.19
  4. Step 4: Simplify right side
    99,734.67x = 7,884,700,266.44
  5. Step 5: Solve for x
    x = 7,884,700,266.44/99,734.67
  6. Step 6: Final answer
    x = 79,056.76

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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.