Home / 115,591.17-159,515.22-64,603.88

Finding the Fourth Proportional to 115,591.17, 159,515.22 and 64,603.88

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Solution

The fourth proportional to 115,591.17, 159,515.22 and 64,603.88 is: 89,153.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,591.17 : 159,515.22 = 64,603.88 : x
  2. Step 2: Convert to fraction form
    115,591.17/159,515.22 = 64,603.88/x
  3. Step 3: Cross multiply
    115,591.17x = 159,515.22 × 64,603.88
  4. Step 4: Simplify right side
    115,591.17x = 10,305,302,173.92
  5. Step 5: Solve for x
    x = 10,305,302,173.92/115,591.17
  6. Step 6: Final answer
    x = 89,153.02

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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.