Home / 155,521.44-214,626.42-87,542.80

Finding the Fourth Proportional to 155,521.44, 214,626.42 and 87,542.80

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Solution

The fourth proportional to 155,521.44, 214,626.42 and 87,542.80 is: 120,812.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,521.44 : 214,626.42 = 87,542.80 : x
  2. Step 2: Convert to fraction form
    155,521.44/214,626.42 = 87,542.80/x
  3. Step 3: Cross multiply
    155,521.44x = 214,626.42 × 87,542.80
  4. Step 4: Simplify right side
    155,521.44x = 18,788,997,760.78
  5. Step 5: Solve for x
    x = 18,788,997,760.78/155,521.44
  6. Step 6: Final answer
    x = 120,812.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.