Home / 129,827.61-194,741.42-70,778.61

Finding the Fourth Proportional to 129,827.61, 194,741.42 and 70,778.61

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Solution

The fourth proportional to 129,827.61, 194,741.42 and 70,778.61 is: 106,167.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,827.61 : 194,741.42 = 70,778.61 : x
  2. Step 2: Convert to fraction form
    129,827.61/194,741.42 = 70,778.61/x
  3. Step 3: Cross multiply
    129,827.61x = 194,741.42 × 70,778.61
  4. Step 4: Simplify right side
    129,827.61x = 13,783,526,663.13
  5. Step 5: Solve for x
    x = 13,783,526,663.13/129,827.61
  6. Step 6: Final answer
    x = 106,167.92

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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.