Home / 134,881.78-186,134.52-74,452.36

Finding the Fourth Proportional to 134,881.78, 186,134.52 and 74,452.36

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Solution

The fourth proportional to 134,881.78, 186,134.52 and 74,452.36 is: 102,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,881.78 : 186,134.52 = 74,452.36 : x
  2. Step 2: Convert to fraction form
    134,881.78/186,134.52 = 74,452.36/x
  3. Step 3: Cross multiply
    134,881.78x = 186,134.52 × 74,452.36
  4. Step 4: Simplify right side
    134,881.78x = 13,858,154,291.47
  5. Step 5: Solve for x
    x = 13,858,154,291.47/134,881.78
  6. Step 6: Final answer
    x = 102,742.97

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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.