Home / 135,391.95-186,836.31-74,965.14

Finding the Fourth Proportional to 135,391.95, 186,836.31 and 74,965.14

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Solution

The fourth proportional to 135,391.95, 186,836.31 and 74,965.14 is: 103,449.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,391.95 : 186,836.31 = 74,965.14 : x
  2. Step 2: Convert to fraction form
    135,391.95/186,836.31 = 74,965.14/x
  3. Step 3: Cross multiply
    135,391.95x = 186,836.31 × 74,965.14
  4. Step 4: Simplify right side
    135,391.95x = 14,006,210,136.23
  5. Step 5: Solve for x
    x = 14,006,210,136.23/135,391.95
  6. Step 6: Final answer
    x = 103,449.36

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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.