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Finding the Fourth Proportional to 98,071.80, 146,908.03 and 89,897.79

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Solution

The fourth proportional to 98,071.80, 146,908.03 and 89,897.79 is: 134,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,071.80 : 146,908.03 = 89,897.79 : x
  2. Step 2: Convert to fraction form
    98,071.80/146,908.03 = 89,897.79/x
  3. Step 3: Cross multiply
    98,071.80x = 146,908.03 × 89,897.79
  4. Step 4: Simplify right side
    98,071.80x = 13,206,707,230.25
  5. Step 5: Solve for x
    x = 13,206,707,230.25/98,071.80
  6. Step 6: Final answer
    x = 134,663.66

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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.