Home / 157,975.39-218,006.07-86,355.73

Finding the Fourth Proportional to 157,975.39, 218,006.07 and 86,355.73

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Solution

The fourth proportional to 157,975.39, 218,006.07 and 86,355.73 is: 119,170.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,975.39 : 218,006.07 = 86,355.73 : x
  2. Step 2: Convert to fraction form
    157,975.39/218,006.07 = 86,355.73/x
  3. Step 3: Cross multiply
    157,975.39x = 218,006.07 × 86,355.73
  4. Step 4: Simplify right side
    157,975.39x = 18,826,072,229.25
  5. Step 5: Solve for x
    x = 18,826,072,229.25/157,975.39
  6. Step 6: Final answer
    x = 119,170.92

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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.