Home / 170,128.92-255,250.62-75,345.96

Finding the Fourth Proportional to 170,128.92, 255,250.62 and 75,345.96

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Solution

The fourth proportional to 170,128.92, 255,250.62 and 75,345.96 is: 113,044.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,128.92 : 255,250.62 = 75,345.96 : x
  2. Step 2: Convert to fraction form
    170,128.92/255,250.62 = 75,345.96/x
  3. Step 3: Cross multiply
    170,128.92x = 255,250.62 × 75,345.96
  4. Step 4: Simplify right side
    170,128.92x = 19,232,103,004.50
  5. Step 5: Solve for x
    x = 19,232,103,004.50/170,128.92
  6. Step 6: Final answer
    x = 113,044.29

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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.