Home / 129,778.12-194,665.95-41,031.62

Finding the Fourth Proportional to 129,778.12, 194,665.95 and 41,031.62

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Solution

The fourth proportional to 129,778.12, 194,665.95 and 41,031.62 is: 61,547.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,778.12 : 194,665.95 = 41,031.62 : x
  2. Step 2: Convert to fraction form
    129,778.12/194,665.95 = 41,031.62/x
  3. Step 3: Cross multiply
    129,778.12x = 194,665.95 × 41,031.62
  4. Step 4: Simplify right side
    129,778.12x = 7,987,459,287.34
  5. Step 5: Solve for x
    x = 7,987,459,287.34/129,778.12
  6. Step 6: Final answer
    x = 61,547.04

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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.