Home / 129,275.76-194,095.22-66,141.15

Finding the Fourth Proportional to 129,275.76, 194,095.22 and 66,141.15

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Solution

The fourth proportional to 129,275.76, 194,095.22 and 66,141.15 is: 99,304.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,275.76 : 194,095.22 = 66,141.15 : x
  2. Step 2: Convert to fraction form
    129,275.76/194,095.22 = 66,141.15/x
  3. Step 3: Cross multiply
    129,275.76x = 194,095.22 × 66,141.15
  4. Step 4: Simplify right side
    129,275.76x = 12,837,680,729.60
  5. Step 5: Solve for x
    x = 12,837,680,729.60/129,275.76
  6. Step 6: Final answer
    x = 99,304.62

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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.