Home / 134,871.80-186,121.17-74,443.59

Finding the Fourth Proportional to 134,871.80, 186,121.17 and 74,443.59

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Solution

The fourth proportional to 134,871.80, 186,121.17 and 74,443.59 is: 102,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,871.80 : 186,121.17 = 74,443.59 : x
  2. Step 2: Convert to fraction form
    134,871.80/186,121.17 = 74,443.59/x
  3. Step 3: Cross multiply
    134,871.80x = 186,121.17 × 74,443.59
  4. Step 4: Simplify right side
    134,871.80x = 13,855,528,069.80
  5. Step 5: Solve for x
    x = 13,855,528,069.80/134,871.80
  6. Step 6: Final answer
    x = 102,731.10

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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.