Home / 170,729.60-256,240.20-76,105.40

Finding the Fourth Proportional to 170,729.60, 256,240.20 and 76,105.40

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Solution

The fourth proportional to 170,729.60, 256,240.20 and 76,105.40 is: 114,223.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,729.60 : 256,240.20 = 76,105.40 : x
  2. Step 2: Convert to fraction form
    170,729.60/256,240.20 = 76,105.40/x
  3. Step 3: Cross multiply
    170,729.60x = 256,240.20 × 76,105.40
  4. Step 4: Simplify right side
    170,729.60x = 19,501,262,917.08
  5. Step 5: Solve for x
    x = 19,501,262,917.08/170,729.60
  6. Step 6: Final answer
    x = 114,223.09

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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.