Home / 115,261.92-159,074.10-66,874.50

Finding the Fourth Proportional to 115,261.92, 159,074.10 and 66,874.50

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Solution

The fourth proportional to 115,261.92, 159,074.10 and 66,874.50 is: 92,294.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,261.92 : 159,074.10 = 66,874.50 : x
  2. Step 2: Convert to fraction form
    115,261.92/159,074.10 = 66,874.50/x
  3. Step 3: Cross multiply
    115,261.92x = 159,074.10 × 66,874.50
  4. Step 4: Simplify right side
    115,261.92x = 10,638,000,900.45
  5. Step 5: Solve for x
    x = 10,638,000,900.45/115,261.92
  6. Step 6: Final answer
    x = 92,294.15

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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.