Home / 99,767.46-137,702.66-57,350.60

Finding the Fourth Proportional to 99,767.46, 137,702.66 and 57,350.60

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Solution

The fourth proportional to 99,767.46, 137,702.66 and 57,350.60 is: 79,157.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,767.46 : 137,702.66 = 57,350.60 : x
  2. Step 2: Convert to fraction form
    99,767.46/137,702.66 = 57,350.60/x
  3. Step 3: Cross multiply
    99,767.46x = 137,702.66 × 57,350.60
  4. Step 4: Simplify right side
    99,767.46x = 7,897,330,172.60
  5. Step 5: Solve for x
    x = 7,897,330,172.60/99,767.46
  6. Step 6: Final answer
    x = 79,157.37

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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.