Home / 104,085.43-155,964.61-80,450.82

Finding the Fourth Proportional to 104,085.43, 155,964.61 and 80,450.82

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Solution

The fourth proportional to 104,085.43, 155,964.61 and 80,450.82 is: 120,549.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,085.43 : 155,964.61 = 80,450.82 : x
  2. Step 2: Convert to fraction form
    104,085.43/155,964.61 = 80,450.82/x
  3. Step 3: Cross multiply
    104,085.43x = 155,964.61 × 80,450.82
  4. Step 4: Simplify right side
    104,085.43x = 12,547,480,765.48
  5. Step 5: Solve for x
    x = 12,547,480,765.48/104,085.43
  6. Step 6: Final answer
    x = 120,549.83

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1.5x scale

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.