Home / 115,176.11-158,888.70-67,399.88

Finding the Fourth Proportional to 115,176.11, 158,888.70 and 67,399.88

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Solution

The fourth proportional to 115,176.11, 158,888.70 and 67,399.88 is: 92,980.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,176.11 : 158,888.70 = 67,399.88 : x
  2. Step 2: Convert to fraction form
    115,176.11/158,888.70 = 67,399.88/x
  3. Step 3: Cross multiply
    115,176.11x = 158,888.70 × 67,399.88
  4. Step 4: Simplify right side
    115,176.11x = 10,709,078,518.91
  5. Step 5: Solve for x
    x = 10,709,078,518.91/115,176.11
  6. Step 6: Final answer
    x = 92,980.04

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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.