Home / 155,200.08-214,170.24-87,219.96

Finding the Fourth Proportional to 155,200.08, 214,170.24 and 87,219.96

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Solution

The fourth proportional to 155,200.08, 214,170.24 and 87,219.96 is: 120,360.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,200.08 : 214,170.24 = 87,219.96 : x
  2. Step 2: Convert to fraction form
    155,200.08/214,170.24 = 87,219.96/x
  3. Step 3: Cross multiply
    155,200.08x = 214,170.24 × 87,219.96
  4. Step 4: Simplify right side
    155,200.08x = 18,679,919,765.99
  5. Step 5: Solve for x
    x = 18,679,919,765.99/155,200.08
  6. Step 6: Final answer
    x = 120,360.25

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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.