Home / 115,343.60-159,173.88-65,042.24

Finding the Fourth Proportional to 115,343.60, 159,173.88 and 65,042.24

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Solution

The fourth proportional to 115,343.60, 159,173.88 and 65,042.24 is: 89,758.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,343.60 : 159,173.88 = 65,042.24 : x
  2. Step 2: Convert to fraction form
    115,343.60/159,173.88 = 65,042.24/x
  3. Step 3: Cross multiply
    115,343.60x = 159,173.88 × 65,042.24
  4. Step 4: Simplify right side
    115,343.60x = 10,353,025,704.69
  5. Step 5: Solve for x
    x = 10,353,025,704.69/115,343.60
  6. Step 6: Final answer
    x = 89,758.13

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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.