Home / 170,919.82-256,412.13-71,025.78

Finding the Fourth Proportional to 170,919.82, 256,412.13 and 71,025.78

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Solution

The fourth proportional to 170,919.82, 256,412.13 and 71,025.78 is: 106,552.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,919.82 : 256,412.13 = 71,025.78 : x
  2. Step 2: Convert to fraction form
    170,919.82/256,412.13 = 71,025.78/x
  3. Step 3: Cross multiply
    170,919.82x = 256,412.13 × 71,025.78
  4. Step 4: Simplify right side
    170,919.82x = 18,211,871,534.71
  5. Step 5: Solve for x
    x = 18,211,871,534.71/170,919.82
  6. Step 6: Final answer
    x = 106,552.13

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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.