Home / 160,974.15-222,145.20-100,579.84

Finding the Fourth Proportional to 160,974.15, 222,145.20 and 100,579.84

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Solution

The fourth proportional to 160,974.15, 222,145.20 and 100,579.84 is: 138,800.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,974.15 : 222,145.20 = 100,579.84 : x
  2. Step 2: Convert to fraction form
    160,974.15/222,145.20 = 100,579.84/x
  3. Step 3: Cross multiply
    160,974.15x = 222,145.20 × 100,579.84
  4. Step 4: Simplify right side
    160,974.15x = 22,343,328,117.41
  5. Step 5: Solve for x
    x = 22,343,328,117.41/160,974.15
  6. Step 6: Final answer
    x = 138,800.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.