Home / 115,491.38-159,362.33-64,497.60

Finding the Fourth Proportional to 115,491.38, 159,362.33 and 64,497.60

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Solution

The fourth proportional to 115,491.38, 159,362.33 and 64,497.60 is: 88,997.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,491.38 : 159,362.33 = 64,497.60 : x
  2. Step 2: Convert to fraction form
    115,491.38/159,362.33 = 64,497.60/x
  3. Step 3: Cross multiply
    115,491.38x = 159,362.33 × 64,497.60
  4. Step 4: Simplify right side
    115,491.38x = 10,278,487,492.92
  5. Step 5: Solve for x
    x = 10,278,487,492.92/115,491.38
  6. Step 6: Final answer
    x = 88,997.88

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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.