Home / 100,528.72-149,691.19-96,936.56

Finding the Fourth Proportional to 100,528.72, 149,691.19 and 96,936.56

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Solution

The fourth proportional to 100,528.72, 149,691.19 and 96,936.56 is: 144,342.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,528.72 : 149,691.19 = 96,936.56 : x
  2. Step 2: Convert to fraction form
    100,528.72/149,691.19 = 96,936.56/x
  3. Step 3: Cross multiply
    100,528.72x = 149,691.19 × 96,936.56
  4. Step 4: Simplify right side
    100,528.72x = 14,510,549,020.91
  5. Step 5: Solve for x
    x = 14,510,549,020.91/100,528.72
  6. Step 6: Final answer
    x = 144,342.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.