Home / 135,233.68-186,559.64-87,502.40

Finding the Fourth Proportional to 135,233.68, 186,559.64 and 87,502.40

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Solution

The fourth proportional to 135,233.68, 186,559.64 and 87,502.40 is: 120,712.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,233.68 : 186,559.64 = 87,502.40 : x
  2. Step 2: Convert to fraction form
    135,233.68/186,559.64 = 87,502.40/x
  3. Step 3: Cross multiply
    135,233.68x = 186,559.64 × 87,502.40
  4. Step 4: Simplify right side
    135,233.68x = 16,324,416,505.22
  5. Step 5: Solve for x
    x = 16,324,416,505.22/135,233.68
  6. Step 6: Final answer
    x = 120,712.66

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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.