Home / 115,753.30-173,450.34-80,283.78

Finding the Fourth Proportional to 115,753.30, 173,450.34 and 80,283.78

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Solution

The fourth proportional to 115,753.30, 173,450.34 and 80,283.78 is: 120,301.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,753.30 : 173,450.34 = 80,283.78 : x
  2. Step 2: Convert to fraction form
    115,753.30/173,450.34 = 80,283.78/x
  3. Step 3: Cross multiply
    115,753.30x = 173,450.34 × 80,283.78
  4. Step 4: Simplify right side
    115,753.30x = 13,925,248,937.49
  5. Step 5: Solve for x
    x = 13,925,248,937.49/115,753.30
  6. Step 6: Final answer
    x = 120,301.10

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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.