Home / 158,531.52-218,795.76-98,121.52

Finding the Fourth Proportional to 158,531.52, 218,795.76 and 98,121.52

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Solution

The fourth proportional to 158,531.52, 218,795.76 and 98,121.52 is: 135,421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,531.52 : 218,795.76 = 98,121.52 : x
  2. Step 2: Convert to fraction form
    158,531.52/218,795.76 = 98,121.52/x
  3. Step 3: Cross multiply
    158,531.52x = 218,795.76 × 98,121.52
  4. Step 4: Simplify right side
    158,531.52x = 21,468,572,540.76
  5. Step 5: Solve for x
    x = 21,468,572,540.76/158,531.52
  6. Step 6: Final answer
    x = 135,421.48

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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.