Home / 170,516.34-255,407.94-138,350.88

Finding the Fourth Proportional to 170,516.34, 255,407.94 and 138,350.88

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Solution

The fourth proportional to 170,516.34, 255,407.94 and 138,350.88 is: 207,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,516.34 : 255,407.94 = 138,350.88 : x
  2. Step 2: Convert to fraction form
    170,516.34/255,407.94 = 138,350.88/x
  3. Step 3: Cross multiply
    170,516.34x = 255,407.94 × 138,350.88
  4. Step 4: Simplify right side
    170,516.34x = 35,335,913,257.99
  5. Step 5: Solve for x
    x = 35,335,913,257.99/170,516.34
  6. Step 6: Final answer
    x = 207,228.90

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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.