Home / 122,191.90-183,172.92-65,947.72

Finding the Fourth Proportional to 122,191.90, 183,172.92 and 65,947.72

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Solution

The fourth proportional to 122,191.90, 183,172.92 and 65,947.72 is: 98,859.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,191.90 : 183,172.92 = 65,947.72 : x
  2. Step 2: Convert to fraction form
    122,191.90/183,172.92 = 65,947.72/x
  3. Step 3: Cross multiply
    122,191.90x = 183,172.92 × 65,947.72
  4. Step 4: Simplify right side
    122,191.90x = 12,079,836,439.74
  5. Step 5: Solve for x
    x = 12,079,836,439.74/122,191.90
  6. Step 6: Final answer
    x = 98,859.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.