Home / 91,557.45-137,170.08-67,601.09

Finding the Fourth Proportional to 91,557.45, 137,170.08 and 67,601.09

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Solution

The fourth proportional to 91,557.45, 137,170.08 and 67,601.09 is: 101,279.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,557.45 : 137,170.08 = 67,601.09 : x
  2. Step 2: Convert to fraction form
    91,557.45/137,170.08 = 67,601.09/x
  3. Step 3: Cross multiply
    91,557.45x = 137,170.08 × 67,601.09
  4. Step 4: Simplify right side
    91,557.45x = 9,272,846,781.31
  5. Step 5: Solve for x
    x = 9,272,846,781.31/91,557.45
  6. Step 6: Final answer
    x = 101,279.00

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1.5x scale

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.