Home / 173,921.60-260,911.20-74,129.60

Finding the Fourth Proportional to 173,921.60, 260,911.20 and 74,129.60

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Solution

The fourth proportional to 173,921.60, 260,911.20 and 74,129.60 is: 111,206.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,921.60 : 260,911.20 = 74,129.60 : x
  2. Step 2: Convert to fraction form
    173,921.60/260,911.20 = 74,129.60/x
  3. Step 3: Cross multiply
    173,921.60x = 260,911.20 × 74,129.60
  4. Step 4: Simplify right side
    173,921.60x = 19,341,242,891.52
  5. Step 5: Solve for x
    x = 19,341,242,891.52/173,921.60
  6. Step 6: Final answer
    x = 111,206.68

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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.