Home / 149,819.76-206,834.32-102,143.16

Finding the Fourth Proportional to 149,819.76, 206,834.32 and 102,143.16

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Solution

The fourth proportional to 149,819.76, 206,834.32 and 102,143.16 is: 141,014.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,819.76 : 206,834.32 = 102,143.16 : x
  2. Step 2: Convert to fraction form
    149,819.76/206,834.32 = 102,143.16/x
  3. Step 3: Cross multiply
    149,819.76x = 206,834.32 × 102,143.16
  4. Step 4: Simplify right side
    149,819.76x = 21,126,711,041.25
  5. Step 5: Solve for x
    x = 21,126,711,041.25/149,819.76
  6. Step 6: Final answer
    x = 141,014.18

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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.