Home / 158,639.27-218,921.60-98,197.88

Finding the Fourth Proportional to 158,639.27, 218,921.60 and 98,197.88

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Solution

The fourth proportional to 158,639.27, 218,921.60 and 98,197.88 is: 135,512.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,639.27 : 218,921.60 = 98,197.88 : x
  2. Step 2: Convert to fraction form
    158,639.27/218,921.60 = 98,197.88/x
  3. Step 3: Cross multiply
    158,639.27x = 218,921.60 × 98,197.88
  4. Step 4: Simplify right side
    158,639.27x = 21,497,637,006.21
  5. Step 5: Solve for x
    x = 21,497,637,006.21/158,639.27
  6. Step 6: Final answer
    x = 135,512.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.