Home / 85,170.22-127,868.37-72,769.93

Finding the Fourth Proportional to 85,170.22, 127,868.37 and 72,769.93

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Solution

The fourth proportional to 85,170.22, 127,868.37 and 72,769.93 is: 109,251.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,170.22 : 127,868.37 = 72,769.93 : x
  2. Step 2: Convert to fraction form
    85,170.22/127,868.37 = 72,769.93/x
  3. Step 3: Cross multiply
    85,170.22x = 127,868.37 × 72,769.93
  4. Step 4: Simplify right side
    85,170.22x = 9,304,972,334.11
  5. Step 5: Solve for x
    x = 9,304,972,334.11/85,170.22
  6. Step 6: Final answer
    x = 109,251.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.