Home / 218,624.14-301,693.44-123,139.72

Finding the Fourth Proportional to 218,624.14, 301,693.44 and 123,139.72

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Solution

The fourth proportional to 218,624.14, 301,693.44 and 123,139.72 is: 169,928.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,624.14 : 301,693.44 = 123,139.72 : x
  2. Step 2: Convert to fraction form
    218,624.14/301,693.44 = 123,139.72/x
  3. Step 3: Cross multiply
    218,624.14x = 301,693.44 × 123,139.72
  4. Step 4: Simplify right side
    218,624.14x = 37,150,445,727.44
  5. Step 5: Solve for x
    x = 37,150,445,727.44/218,624.14
  6. Step 6: Final answer
    x = 169,928.38

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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.