Home / 134,884.78-186,141.02-74,455.46

Finding the Fourth Proportional to 134,884.78, 186,141.02 and 74,455.46

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Solution

The fourth proportional to 134,884.78, 186,141.02 and 74,455.46 is: 102,748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,884.78 : 186,141.02 = 74,455.46 : x
  2. Step 2: Convert to fraction form
    134,884.78/186,141.02 = 74,455.46/x
  3. Step 3: Cross multiply
    134,884.78x = 186,141.02 × 74,455.46
  4. Step 4: Simplify right side
    134,884.78x = 13,859,215,268.97
  5. Step 5: Solve for x
    x = 13,859,215,268.97/134,884.78
  6. Step 6: Final answer
    x = 102,748.55

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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.