Home / 136,806.70-205,521.42-98,972.66

Finding the Fourth Proportional to 136,806.70, 205,521.42 and 98,972.66

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Solution

The fourth proportional to 136,806.70, 205,521.42 and 98,972.66 is: 148,684.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,806.70 : 205,521.42 = 98,972.66 : x
  2. Step 2: Convert to fraction form
    136,806.70/205,521.42 = 98,972.66/x
  3. Step 3: Cross multiply
    136,806.70x = 205,521.42 × 98,972.66
  4. Step 4: Simplify right side
    136,806.70x = 20,341,001,624.38
  5. Step 5: Solve for x
    x = 20,341,001,624.38/136,806.70
  6. Step 6: Final answer
    x = 148,684.25

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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.