Home / 135,066.10-186,402.44-74,648.54

Finding the Fourth Proportional to 135,066.10, 186,402.44 and 74,648.54

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Solution

The fourth proportional to 135,066.10, 186,402.44 and 74,648.54 is: 103,021.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,066.10 : 186,402.44 = 74,648.54 : x
  2. Step 2: Convert to fraction form
    135,066.10/186,402.44 = 74,648.54/x
  3. Step 3: Cross multiply
    135,066.10x = 186,402.44 × 74,648.54
  4. Step 4: Simplify right side
    135,066.10x = 13,914,668,693.18
  5. Step 5: Solve for x
    x = 13,914,668,693.18/135,066.10
  6. Step 6: Final answer
    x = 103,021.18

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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.