Home / 91,184.46-136,824.06-68,991.24

Finding the Fourth Proportional to 91,184.46, 136,824.06 and 68,991.24

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Solution

The fourth proportional to 91,184.46, 136,824.06 and 68,991.24 is: 103,522.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,184.46 : 136,824.06 = 68,991.24 : x
  2. Step 2: Convert to fraction form
    91,184.46/136,824.06 = 68,991.24/x
  3. Step 3: Cross multiply
    91,184.46x = 136,824.06 × 68,991.24
  4. Step 4: Simplify right side
    91,184.46x = 9,439,661,561.23
  5. Step 5: Solve for x
    x = 9,439,661,561.23/91,184.46
  6. Step 6: Final answer
    x = 103,522.70

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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.