Home / 129,983.60-195,040.20-73,866.80

Finding the Fourth Proportional to 129,983.60, 195,040.20 and 73,866.80

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Solution

The fourth proportional to 129,983.60, 195,040.20 and 73,866.80 is: 110,837.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,983.60 : 195,040.20 = 73,866.80 : x
  2. Step 2: Convert to fraction form
    129,983.60/195,040.20 = 73,866.80/x
  3. Step 3: Cross multiply
    129,983.60x = 195,040.20 × 73,866.80
  4. Step 4: Simplify right side
    129,983.60x = 14,406,995,445.36
  5. Step 5: Solve for x
    x = 14,406,995,445.36/129,983.60
  6. Step 6: Final answer
    x = 110,837.02

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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.