Home / 134,736.68-185,928-74,307.75

Finding the Fourth Proportional to 134,736.68, 185,928 and 74,307.75

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Solution

The fourth proportional to 134,736.68, 185,928 and 74,307.75 is: 102,539.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,736.68 : 185,928 = 74,307.75 : x
  2. Step 2: Convert to fraction form
    134,736.68/185,928 = 74,307.75/x
  3. Step 3: Cross multiply
    134,736.68x = 185,928 × 74,307.75
  4. Step 4: Simplify right side
    134,736.68x = 13,815,891,342
  5. Step 5: Solve for x
    x = 13,815,891,342/134,736.68
  6. Step 6: Final answer
    x = 102,539.95

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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.