Home / 91,516.97-136,652.49-80,753.59

Finding the Fourth Proportional to 91,516.97, 136,652.49 and 80,753.59

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Solution

The fourth proportional to 91,516.97, 136,652.49 and 80,753.59 is: 120,580.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,516.97 : 136,652.49 = 80,753.59 : x
  2. Step 2: Convert to fraction form
    91,516.97/136,652.49 = 80,753.59/x
  3. Step 3: Cross multiply
    91,516.97x = 136,652.49 × 80,753.59
  4. Step 4: Simplify right side
    91,516.97x = 11,035,179,547.87
  5. Step 5: Solve for x
    x = 11,035,179,547.87/91,516.97
  6. Step 6: Final answer
    x = 120,580.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.