Home / 91,084.32-136,625.85-70,061.79

Finding the Fourth Proportional to 91,084.32, 136,625.85 and 70,061.79

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Solution

The fourth proportional to 91,084.32, 136,625.85 and 70,061.79 is: 105,092.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,084.32 : 136,625.85 = 70,061.79 : x
  2. Step 2: Convert to fraction form
    91,084.32/136,625.85 = 70,061.79/x
  3. Step 3: Cross multiply
    91,084.32x = 136,625.85 × 70,061.79
  4. Step 4: Simplify right side
    91,084.32x = 9,572,251,611.27
  5. Step 5: Solve for x
    x = 9,572,251,611.27/91,084.32
  6. Step 6: Final answer
    x = 105,092.20

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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.