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Finding the Fourth Proportional to 130,545.80, 195,672.90 and 74,412.80

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Solution

The fourth proportional to 130,545.80, 195,672.90 and 74,412.80 is: 111,536.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,545.80 : 195,672.90 = 74,412.80 : x
  2. Step 2: Convert to fraction form
    130,545.80/195,672.90 = 74,412.80/x
  3. Step 3: Cross multiply
    130,545.80x = 195,672.90 × 74,412.80
  4. Step 4: Simplify right side
    130,545.80x = 14,560,568,373.12
  5. Step 5: Solve for x
    x = 14,560,568,373.12/130,545.80
  6. Step 6: Final answer
    x = 111,536.09

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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.