Home / 115,220.84-159,025.38-67,471.40

Finding the Fourth Proportional to 115,220.84, 159,025.38 and 67,471.40

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Solution

The fourth proportional to 115,220.84, 159,025.38 and 67,471.40 is: 93,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,220.84 : 159,025.38 = 67,471.40 : x
  2. Step 2: Convert to fraction form
    115,220.84/159,025.38 = 67,471.40/x
  3. Step 3: Cross multiply
    115,220.84x = 159,025.38 × 67,471.40
  4. Step 4: Simplify right side
    115,220.84x = 10,729,665,024.13
  5. Step 5: Solve for x
    x = 10,729,665,024.13/115,220.84
  6. Step 6: Final answer
    x = 93,122.61

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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.