Home / 135,185.75-186,557.51-74,760.46

Finding the Fourth Proportional to 135,185.75, 186,557.51 and 74,760.46

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Solution

The fourth proportional to 135,185.75, 186,557.51 and 74,760.46 is: 103,170.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,185.75 : 186,557.51 = 74,760.46 : x
  2. Step 2: Convert to fraction form
    135,185.75/186,557.51 = 74,760.46/x
  3. Step 3: Cross multiply
    135,185.75x = 186,557.51 × 74,760.46
  4. Step 4: Simplify right side
    135,185.75x = 13,947,125,264.05
  5. Step 5: Solve for x
    x = 13,947,125,264.05/135,185.75
  6. Step 6: Final answer
    x = 103,170.08

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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.