Home / 135,289.64-186,699.92-74,862.83

Finding the Fourth Proportional to 135,289.64, 186,699.92 and 74,862.83

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Solution

The fourth proportional to 135,289.64, 186,699.92 and 74,862.83 is: 103,310.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,289.64 : 186,699.92 = 74,862.83 : x
  2. Step 2: Convert to fraction form
    135,289.64/186,699.92 = 74,862.83/x
  3. Step 3: Cross multiply
    135,289.64x = 186,699.92 × 74,862.83
  4. Step 4: Simplify right side
    135,289.64x = 13,976,884,371.97
  5. Step 5: Solve for x
    x = 13,976,884,371.97/135,289.64
  6. Step 6: Final answer
    x = 103,310.83

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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.