Home / 135,309.10-186,721.95-74,882.29

Finding the Fourth Proportional to 135,309.10, 186,721.95 and 74,882.29

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Solution

The fourth proportional to 135,309.10, 186,721.95 and 74,882.29 is: 103,335.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,309.10 : 186,721.95 = 74,882.29 : x
  2. Step 2: Convert to fraction form
    135,309.10/186,721.95 = 74,882.29/x
  3. Step 3: Cross multiply
    135,309.10x = 186,721.95 × 74,882.29
  4. Step 4: Simplify right side
    135,309.10x = 13,982,167,209.27
  5. Step 5: Solve for x
    x = 13,982,167,209.27/135,309.10
  6. Step 6: Final answer
    x = 103,335.01

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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.