Home / 135,575.16-186,996.56-89,581.52

Finding the Fourth Proportional to 135,575.16, 186,996.56 and 89,581.52

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Solution

The fourth proportional to 135,575.16, 186,996.56 and 89,581.52 is: 123,558.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,575.16 : 186,996.56 = 89,581.52 : x
  2. Step 2: Convert to fraction form
    135,575.16/186,996.56 = 89,581.52/x
  3. Step 3: Cross multiply
    135,575.16x = 186,996.56 × 89,581.52
  4. Step 4: Simplify right side
    135,575.16x = 16,751,436,079.57
  5. Step 5: Solve for x
    x = 16,751,436,079.57/135,575.16
  6. Step 6: Final answer
    x = 123,558.30

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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.