Home / 135,705.68-187,279.84-75,272.32

Finding the Fourth Proportional to 135,705.68, 187,279.84 and 75,272.32

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Solution

The fourth proportional to 135,705.68, 187,279.84 and 75,272.32 is: 103,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,705.68 : 187,279.84 = 75,272.32 : x
  2. Step 2: Convert to fraction form
    135,705.68/187,279.84 = 75,272.32/x
  3. Step 3: Cross multiply
    135,705.68x = 187,279.84 × 75,272.32
  4. Step 4: Simplify right side
    135,705.68x = 14,096,988,046.03
  5. Step 5: Solve for x
    x = 14,096,988,046.03/135,705.68
  6. Step 6: Final answer
    x = 103,879.13

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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.