Home / 115,760.66-159,738.41-64,770.35

Finding the Fourth Proportional to 115,760.66, 159,738.41 and 64,770.35

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Solution

The fourth proportional to 115,760.66, 159,738.41 and 64,770.35 is: 89,376.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,760.66 : 159,738.41 = 64,770.35 : x
  2. Step 2: Convert to fraction form
    115,760.66/159,738.41 = 64,770.35/x
  3. Step 3: Cross multiply
    115,760.66x = 159,738.41 × 64,770.35
  4. Step 4: Simplify right side
    115,760.66x = 10,346,312,087.38
  5. Step 5: Solve for x
    x = 10,346,312,087.38/115,760.66
  6. Step 6: Final answer
    x = 89,376.76

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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.