Home / 268,045.20-401,508.90-126,011.70

Finding the Fourth Proportional to 268,045.20, 401,508.90 and 126,011.70

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Solution

The fourth proportional to 268,045.20, 401,508.90 and 126,011.70 is: 188,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,045.20 : 401,508.90 = 126,011.70 : x
  2. Step 2: Convert to fraction form
    268,045.20/401,508.90 = 126,011.70/x
  3. Step 3: Cross multiply
    268,045.20x = 401,508.90 × 126,011.70
  4. Step 4: Simplify right side
    268,045.20x = 50,594,819,054.13
  5. Step 5: Solve for x
    x = 50,594,819,054.13/268,045.20
  6. Step 6: Final answer
    x = 188,754.80

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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.