Home / 157,819.85-217,802.51-89,836.85

Finding the Fourth Proportional to 157,819.85, 217,802.51 and 89,836.85

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Solution

The fourth proportional to 157,819.85, 217,802.51 and 89,836.85 is: 123,981.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,819.85 : 217,802.51 = 89,836.85 : x
  2. Step 2: Convert to fraction form
    157,819.85/217,802.51 = 89,836.85/x
  3. Step 3: Cross multiply
    157,819.85x = 217,802.51 × 89,836.85
  4. Step 4: Simplify right side
    157,819.85x = 19,566,691,035.94
  5. Step 5: Solve for x
    x = 19,566,691,035.94/157,819.85
  6. Step 6: Final answer
    x = 123,981.18

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1.5x scale

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.