Home / 91,399.86-136,837.35-67,546.98

Finding the Fourth Proportional to 91,399.86, 136,837.35 and 67,546.98

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Solution

The fourth proportional to 91,399.86, 136,837.35 and 67,546.98 is: 101,126.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,399.86 : 136,837.35 = 67,546.98 : x
  2. Step 2: Convert to fraction form
    91,399.86/136,837.35 = 67,546.98/x
  3. Step 3: Cross multiply
    91,399.86x = 136,837.35 × 67,546.98
  4. Step 4: Simplify right side
    91,399.86x = 9,242,949,743.70
  5. Step 5: Solve for x
    x = 9,242,949,743.70/91,399.86
  6. Step 6: Final answer
    x = 101,126.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.