Home / 109,147.87-150,622.62-61,401.20

Finding the Fourth Proportional to 109,147.87, 150,622.62 and 61,401.20

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Solution

The fourth proportional to 109,147.87, 150,622.62 and 61,401.20 is: 84,732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,147.87 : 150,622.62 = 61,401.20 : x
  2. Step 2: Convert to fraction form
    109,147.87/150,622.62 = 61,401.20/x
  3. Step 3: Cross multiply
    109,147.87x = 150,622.62 × 61,401.20
  4. Step 4: Simplify right side
    109,147.87x = 9,248,409,615.14
  5. Step 5: Solve for x
    x = 9,248,409,615.14/109,147.87
  6. Step 6: Final answer
    x = 84,732.85

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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.