Home / 170,021.32-255,032.46-81,254.68

Finding the Fourth Proportional to 170,021.32, 255,032.46 and 81,254.68

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Solution

The fourth proportional to 170,021.32, 255,032.46 and 81,254.68 is: 121,882.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,021.32 : 255,032.46 = 81,254.68 : x
  2. Step 2: Convert to fraction form
    170,021.32/255,032.46 = 81,254.68/x
  3. Step 3: Cross multiply
    170,021.32x = 255,032.46 × 81,254.68
  4. Step 4: Simplify right side
    170,021.32x = 20,722,580,926.91
  5. Step 5: Solve for x
    x = 20,722,580,926.91/170,021.32
  6. Step 6: Final answer
    x = 121,882.25

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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.