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Finding the Fourth Proportional to 79,611.95, 119,404.35 and 75,220.13

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Solution

The fourth proportional to 79,611.95, 119,404.35 and 75,220.13 is: 112,817.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,611.95 : 119,404.35 = 75,220.13 : x
  2. Step 2: Convert to fraction form
    79,611.95/119,404.35 = 75,220.13/x
  3. Step 3: Cross multiply
    79,611.95x = 119,404.35 × 75,220.13
  4. Step 4: Simplify right side
    79,611.95x = 8,981,610,132.54
  5. Step 5: Solve for x
    x = 8,981,610,132.54/79,611.95
  6. Step 6: Final answer
    x = 112,817.37

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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.