Home / 91,555.32-137,195.07-81,577.94

Finding the Fourth Proportional to 91,555.32, 137,195.07 and 81,577.94

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Solution

The fourth proportional to 91,555.32, 137,195.07 and 81,577.94 is: 122,244.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,555.32 : 137,195.07 = 81,577.94 : x
  2. Step 2: Convert to fraction form
    91,555.32/137,195.07 = 81,577.94/x
  3. Step 3: Cross multiply
    91,555.32x = 137,195.07 × 81,577.94
  4. Step 4: Simplify right side
    91,555.32x = 11,192,090,196.86
  5. Step 5: Solve for x
    x = 11,192,090,196.86/91,555.32
  6. Step 6: Final answer
    x = 122,244.01

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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.