Home / 170,139.83-255,190.28-45,490.55

Finding the Fourth Proportional to 170,139.83, 255,190.28 and 45,490.55

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Solution

The fourth proportional to 170,139.83, 255,190.28 and 45,490.55 is: 68,230.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,139.83 : 255,190.28 = 45,490.55 : x
  2. Step 2: Convert to fraction form
    170,139.83/255,190.28 = 45,490.55/x
  3. Step 3: Cross multiply
    170,139.83x = 255,190.28 × 45,490.55
  4. Step 4: Simplify right side
    170,139.83x = 11,608,744,688.45
  5. Step 5: Solve for x
    x = 11,608,744,688.45/170,139.83
  6. Step 6: Final answer
    x = 68,230.61

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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.