Home / 157,839.65-217,764.69-89,839.61

Finding the Fourth Proportional to 157,839.65, 217,764.69 and 89,839.61

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Solution

The fourth proportional to 157,839.65, 217,764.69 and 89,839.61 is: 123,947.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,839.65 : 217,764.69 = 89,839.61 : x
  2. Step 2: Convert to fraction form
    157,839.65/217,764.69 = 89,839.61/x
  3. Step 3: Cross multiply
    157,839.65x = 217,764.69 × 89,839.61
  4. Step 4: Simplify right side
    157,839.65x = 19,563,894,821.37
  5. Step 5: Solve for x
    x = 19,563,894,821.37/157,839.65
  6. Step 6: Final answer
    x = 123,947.91

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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.