Home / 157,738.76-217,677.84-86,118.56

Finding the Fourth Proportional to 157,738.76, 217,677.84 and 86,118.56

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Solution

The fourth proportional to 157,738.76, 217,677.84 and 86,118.56 is: 118,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,738.76 : 217,677.84 = 86,118.56 : x
  2. Step 2: Convert to fraction form
    157,738.76/217,677.84 = 86,118.56/x
  3. Step 3: Cross multiply
    157,738.76x = 217,677.84 × 86,118.56
  4. Step 4: Simplify right side
    157,738.76x = 18,746,102,124.71
  5. Step 5: Solve for x
    x = 18,746,102,124.71/157,738.76
  6. Step 6: Final answer
    x = 118,842.71

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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.