Home / 112,892.28-169,108.79-90,584.88

Finding the Fourth Proportional to 112,892.28, 169,108.79 and 90,584.88

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Solution

The fourth proportional to 112,892.28, 169,108.79 and 90,584.88 is: 135,693.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,892.28 : 169,108.79 = 90,584.88 : x
  2. Step 2: Convert to fraction form
    112,892.28/169,108.79 = 90,584.88/x
  3. Step 3: Cross multiply
    112,892.28x = 169,108.79 × 90,584.88
  4. Step 4: Simplify right side
    112,892.28x = 15,318,698,996.17
  5. Step 5: Solve for x
    x = 15,318,698,996.17/112,892.28
  6. Step 6: Final answer
    x = 135,693.06

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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.