Home / 115,505.42-159,400.08-67,793.18

Finding the Fourth Proportional to 115,505.42, 159,400.08 and 67,793.18

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Solution

The fourth proportional to 115,505.42, 159,400.08 and 67,793.18 is: 93,556.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,505.42 : 159,400.08 = 67,793.18 : x
  2. Step 2: Convert to fraction form
    115,505.42/159,400.08 = 67,793.18/x
  3. Step 3: Cross multiply
    115,505.42x = 159,400.08 × 67,793.18
  4. Step 4: Simplify right side
    115,505.42x = 10,806,238,315.45
  5. Step 5: Solve for x
    x = 10,806,238,315.45/115,505.42
  6. Step 6: Final answer
    x = 93,556.11

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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.