Home / 134,863.95-186,111.33-74,434.59

Finding the Fourth Proportional to 134,863.95, 186,111.33 and 74,434.59

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Solution

The fourth proportional to 134,863.95, 186,111.33 and 74,434.59 is: 102,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,863.95 : 186,111.33 = 74,434.59 : x
  2. Step 2: Convert to fraction form
    134,863.95/186,111.33 = 74,434.59/x
  3. Step 3: Cross multiply
    134,863.95x = 186,111.33 × 74,434.59
  4. Step 4: Simplify right side
    134,863.95x = 13,853,120,542.90
  5. Step 5: Solve for x
    x = 13,853,120,542.90/134,863.95
  6. Step 6: Final answer
    x = 102,719.23

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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.