Home / 91,282.16-136,699.67-75,389.96

Finding the Fourth Proportional to 91,282.16, 136,699.67 and 75,389.96

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Solution

The fourth proportional to 91,282.16, 136,699.67 and 75,389.96 is: 112,900.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,282.16 : 136,699.67 = 75,389.96 : x
  2. Step 2: Convert to fraction form
    91,282.16/136,699.67 = 75,389.96/x
  3. Step 3: Cross multiply
    91,282.16x = 136,699.67 × 75,389.96
  4. Step 4: Simplify right side
    91,282.16x = 10,305,781,592.87
  5. Step 5: Solve for x
    x = 10,305,781,592.87/91,282.16
  6. Step 6: Final answer
    x = 112,900.29

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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.