Home / 134,879.18-186,133.29-74,449.85

Finding the Fourth Proportional to 134,879.18, 186,133.29 and 74,449.85

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Solution

The fourth proportional to 134,879.18, 186,133.29 and 74,449.85 is: 102,740.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,879.18 : 186,133.29 = 74,449.85 : x
  2. Step 2: Convert to fraction form
    134,879.18/186,133.29 = 74,449.85/x
  3. Step 3: Cross multiply
    134,879.18x = 186,133.29 × 74,449.85
  4. Step 4: Simplify right side
    134,879.18x = 13,857,595,776.43
  5. Step 5: Solve for x
    x = 13,857,595,776.43/134,879.18
  6. Step 6: Final answer
    x = 102,740.81

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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.