Home / 168,152.06-251,703.20-120,686.90

Finding the Fourth Proportional to 168,152.06, 251,703.20 and 120,686.90

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Solution

The fourth proportional to 168,152.06, 251,703.20 and 120,686.90 is: 180,653.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,152.06 : 251,703.20 = 120,686.90 : x
  2. Step 2: Convert to fraction form
    168,152.06/251,703.20 = 120,686.90/x
  3. Step 3: Cross multiply
    168,152.06x = 251,703.20 × 120,686.90
  4. Step 4: Simplify right side
    168,152.06x = 30,377,278,928.08
  5. Step 5: Solve for x
    x = 30,377,278,928.08/168,152.06
  6. Step 6: Final answer
    x = 180,653.62

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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.