Home / 135,641.40-187,194.51-75,217.62

Finding the Fourth Proportional to 135,641.40, 187,194.51 and 75,217.62

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Solution

The fourth proportional to 135,641.40, 187,194.51 and 75,217.62 is: 103,805.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,641.40 : 187,194.51 = 75,217.62 : x
  2. Step 2: Convert to fraction form
    135,641.40/187,194.51 = 75,217.62/x
  3. Step 3: Cross multiply
    135,641.40x = 187,194.51 × 75,217.62
  4. Step 4: Simplify right side
    135,641.40x = 14,080,325,519.27
  5. Step 5: Solve for x
    x = 14,080,325,519.27/135,641.40
  6. Step 6: Final answer
    x = 103,805.52

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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.