Home / 161,209.32-222,234.38-112,660.53

Finding the Fourth Proportional to 161,209.32, 222,234.38 and 112,660.53

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Solution

The fourth proportional to 161,209.32, 222,234.38 and 112,660.53 is: 155,307.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,209.32 : 222,234.38 = 112,660.53 : x
  2. Step 2: Convert to fraction form
    161,209.32/222,234.38 = 112,660.53/x
  3. Step 3: Cross multiply
    161,209.32x = 222,234.38 × 112,660.53
  4. Step 4: Simplify right side
    161,209.32x = 25,037,042,471.72
  5. Step 5: Solve for x
    x = 25,037,042,471.72/161,209.32
  6. Step 6: Final answer
    x = 155,307.66

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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.