Home / 109,147.90-150,622.50-61,401.28

Finding the Fourth Proportional to 109,147.90, 150,622.50 and 61,401.28

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Solution

The fourth proportional to 109,147.90, 150,622.50 and 61,401.28 is: 84,732.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,147.90 : 150,622.50 = 61,401.28 : x
  2. Step 2: Convert to fraction form
    109,147.90/150,622.50 = 61,401.28/x
  3. Step 3: Cross multiply
    109,147.90x = 150,622.50 × 61,401.28
  4. Step 4: Simplify right side
    109,147.90x = 9,248,414,296.80
  5. Step 5: Solve for x
    x = 9,248,414,296.80/109,147.90
  6. Step 6: Final answer
    x = 84,732.87

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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.