Home / 115,352.20-159,158.78-65,041.48

Finding the Fourth Proportional to 115,352.20, 159,158.78 and 65,041.48

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Solution

The fourth proportional to 115,352.20, 159,158.78 and 65,041.48 is: 89,741.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,352.20 : 159,158.78 = 65,041.48 : x
  2. Step 2: Convert to fraction form
    115,352.20/159,158.78 = 65,041.48/x
  3. Step 3: Cross multiply
    115,352.20x = 159,158.78 × 65,041.48
  4. Step 4: Simplify right side
    115,352.20x = 10,351,922,606.19
  5. Step 5: Solve for x
    x = 10,351,922,606.19/115,352.20
  6. Step 6: Final answer
    x = 89,741.87

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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.