Home / 135,292.38-186,703.72-74,865.58

Finding the Fourth Proportional to 135,292.38, 186,703.72 and 74,865.58

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Solution

The fourth proportional to 135,292.38, 186,703.72 and 74,865.58 is: 103,314.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,292.38 : 186,703.72 = 74,865.58 : x
  2. Step 2: Convert to fraction form
    135,292.38/186,703.72 = 74,865.58/x
  3. Step 3: Cross multiply
    135,292.38x = 186,703.72 × 74,865.58
  4. Step 4: Simplify right side
    135,292.38x = 13,977,682,285.96
  5. Step 5: Solve for x
    x = 13,977,682,285.96/135,292.38
  6. Step 6: Final answer
    x = 103,314.63

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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.