Home / 134,883.78-186,139.64-74,454.46

Finding the Fourth Proportional to 134,883.78, 186,139.64 and 74,454.46

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Solution

The fourth proportional to 134,883.78, 186,139.64 and 74,454.46 is: 102,747.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,883.78 : 186,139.64 = 74,454.46 : x
  2. Step 2: Convert to fraction form
    134,883.78/186,139.64 = 74,454.46/x
  3. Step 3: Cross multiply
    134,883.78x = 186,139.64 × 74,454.46
  4. Step 4: Simplify right side
    134,883.78x = 13,858,926,380.79
  5. Step 5: Solve for x
    x = 13,858,926,380.79/134,883.78
  6. Step 6: Final answer
    x = 102,747.17

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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.