Home / 91,122.15-125,636.85-74,932.89

Finding the Fourth Proportional to 91,122.15, 125,636.85 and 74,932.89

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Solution

The fourth proportional to 91,122.15, 125,636.85 and 74,932.89 is: 103,315.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,122.15 : 125,636.85 = 74,932.89 : x
  2. Step 2: Convert to fraction form
    91,122.15/125,636.85 = 74,932.89/x
  3. Step 3: Cross multiply
    91,122.15x = 125,636.85 × 74,932.89
  4. Step 4: Simplify right side
    91,122.15x = 9,414,332,261.00
  5. Step 5: Solve for x
    x = 9,414,332,261.00/91,122.15
  6. Step 6: Final answer
    x = 103,315.52

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1.5x scale

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.