Home / 218,624.06-301,648.46-123,130.73

Finding the Fourth Proportional to 218,624.06, 301,648.46 and 123,130.73

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Solution

The fourth proportional to 218,624.06, 301,648.46 and 123,130.73 is: 169,890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,624.06 : 301,648.46 = 123,130.73 : x
  2. Step 2: Convert to fraction form
    218,624.06/301,648.46 = 123,130.73/x
  3. Step 3: Cross multiply
    218,624.06x = 301,648.46 × 123,130.73
  4. Step 4: Simplify right side
    218,624.06x = 37,142,195,221.64
  5. Step 5: Solve for x
    x = 37,142,195,221.64/218,624.06
  6. Step 6: Final answer
    x = 169,890.70

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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.