Home / 150,543.20-225,879.60-76,671.20

Finding the Fourth Proportional to 150,543.20, 225,879.60 and 76,671.20

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Solution

The fourth proportional to 150,543.20, 225,879.60 and 76,671.20 is: 115,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,543.20 : 225,879.60 = 76,671.20 : x
  2. Step 2: Convert to fraction form
    150,543.20/225,879.60 = 76,671.20/x
  3. Step 3: Cross multiply
    150,543.20x = 225,879.60 × 76,671.20
  4. Step 4: Simplify right side
    150,543.20x = 17,318,459,987.52
  5. Step 5: Solve for x
    x = 17,318,459,987.52/150,543.20
  6. Step 6: Final answer
    x = 115,039.80

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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.