Home / 135,750.30-187,338.49-75,318.69

Finding the Fourth Proportional to 135,750.30, 187,338.49 and 75,318.69

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Solution

The fourth proportional to 135,750.30, 187,338.49 and 75,318.69 is: 103,941.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,750.30 : 187,338.49 = 75,318.69 : x
  2. Step 2: Convert to fraction form
    135,750.30/187,338.49 = 75,318.69/x
  3. Step 3: Cross multiply
    135,750.30x = 187,338.49 × 75,318.69
  4. Step 4: Simplify right side
    135,750.30x = 14,110,090,167.60
  5. Step 5: Solve for x
    x = 14,110,090,167.60/135,750.30
  6. Step 6: Final answer
    x = 103,941.51

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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.