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Finding the Fourth Proportional to 91,373.33, 136,727.84 and 75,430.10

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Solution

The fourth proportional to 91,373.33, 136,727.84 and 75,430.10 is: 112,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,373.33 : 136,727.84 = 75,430.10 : x
  2. Step 2: Convert to fraction form
    91,373.33/136,727.84 = 75,430.10/x
  3. Step 3: Cross multiply
    91,373.33x = 136,727.84 × 75,430.10
  4. Step 4: Simplify right side
    91,373.33x = 10,313,393,583.19
  5. Step 5: Solve for x
    x = 10,313,393,583.19/91,373.33
  6. Step 6: Final answer
    x = 112,870.95

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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.