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Finding the Fourth Proportional to 101,385.88, 151,833.69 and 98,728.67

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Solution

The fourth proportional to 101,385.88, 151,833.69 and 98,728.67 is: 147,854.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,385.88 : 151,833.69 = 98,728.67 : x
  2. Step 2: Convert to fraction form
    101,385.88/151,833.69 = 98,728.67/x
  3. Step 3: Cross multiply
    101,385.88x = 151,833.69 × 98,728.67
  4. Step 4: Simplify right side
    101,385.88x = 14,990,338,654.48
  5. Step 5: Solve for x
    x = 14,990,338,654.48/101,385.88
  6. Step 6: Final answer
    x = 147,854.31

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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.