Home / 115,341.18-159,170.85-65,040.18

Finding the Fourth Proportional to 115,341.18, 159,170.85 and 65,040.18

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Solution

The fourth proportional to 115,341.18, 159,170.85 and 65,040.18 is: 89,755.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,341.18 : 159,170.85 = 65,040.18 : x
  2. Step 2: Convert to fraction form
    115,341.18/159,170.85 = 65,040.18/x
  3. Step 3: Cross multiply
    115,341.18x = 159,170.85 × 65,040.18
  4. Step 4: Simplify right side
    115,341.18x = 10,352,500,734.75
  5. Step 5: Solve for x
    x = 10,352,500,734.75/115,341.18
  6. Step 6: Final answer
    x = 89,755.46

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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.