Home / 516,619.12-774,914.36-137,543.11

Finding the Fourth Proportional to 516,619.12, 774,914.36 and 137,543.11

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Solution

The fourth proportional to 516,619.12, 774,914.36 and 137,543.11 is: 206,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,619.12 : 774,914.36 = 137,543.11 : x
  2. Step 2: Convert to fraction form
    516,619.12/774,914.36 = 137,543.11/x
  3. Step 3: Cross multiply
    516,619.12x = 774,914.36 × 137,543.11
  4. Step 4: Simplify right side
    516,619.12x = 106,584,128,081.62
  5. Step 5: Solve for x
    x = 106,584,128,081.62/516,619.12
  6. Step 6: Final answer
    x = 206,310.85

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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.