Home / 170,023.32-255,035.46-81,256.68

Finding the Fourth Proportional to 170,023.32, 255,035.46 and 81,256.68

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Solution

The fourth proportional to 170,023.32, 255,035.46 and 81,256.68 is: 121,885.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,023.32 : 255,035.46 = 81,256.68 : x
  2. Step 2: Convert to fraction form
    170,023.32/255,035.46 = 81,256.68/x
  3. Step 3: Cross multiply
    170,023.32x = 255,035.46 × 81,256.68
  4. Step 4: Simplify right side
    170,023.32x = 20,723,334,761.87
  5. Step 5: Solve for x
    x = 20,723,334,761.87/170,023.32
  6. Step 6: Final answer
    x = 121,885.25

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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.