Home / 115,835.46-159,845.51-64,839.62

Finding the Fourth Proportional to 115,835.46, 159,845.51 and 64,839.62

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Solution

The fourth proportional to 115,835.46, 159,845.51 and 64,839.62 is: 89,474.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,835.46 : 159,845.51 = 64,839.62 : x
  2. Step 2: Convert to fraction form
    115,835.46/159,845.51 = 64,839.62/x
  3. Step 3: Cross multiply
    115,835.46x = 159,845.51 × 64,839.62
  4. Step 4: Simplify right side
    115,835.46x = 10,364,321,003.68
  5. Step 5: Solve for x
    x = 10,364,321,003.68/115,835.46
  6. Step 6: Final answer
    x = 89,474.51

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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.