Home / 109,017.80-150,445.92-65,996.72

Finding the Fourth Proportional to 109,017.80, 150,445.92 and 65,996.72

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Solution

The fourth proportional to 109,017.80, 150,445.92 and 65,996.72 is: 91,076.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,017.80 : 150,445.92 = 65,996.72 : x
  2. Step 2: Convert to fraction form
    109,017.80/150,445.92 = 65,996.72/x
  3. Step 3: Cross multiply
    109,017.80x = 150,445.92 × 65,996.72
  4. Step 4: Simplify right side
    109,017.80x = 9,928,937,257.38
  5. Step 5: Solve for x
    x = 9,928,937,257.38/109,017.80
  6. Step 6: Final answer
    x = 91,076.29

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1.5x scale

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.