Home / 134,917.22-186,182.05-74,486.76

Finding the Fourth Proportional to 134,917.22, 186,182.05 and 74,486.76

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Solution

The fourth proportional to 134,917.22, 186,182.05 and 74,486.76 is: 102,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,917.22 : 186,182.05 = 74,486.76 : x
  2. Step 2: Convert to fraction form
    134,917.22/186,182.05 = 74,486.76/x
  3. Step 3: Cross multiply
    134,917.22x = 186,182.05 × 74,486.76
  4. Step 4: Simplify right side
    134,917.22x = 13,868,097,302.22
  5. Step 5: Solve for x
    x = 13,868,097,302.22/134,917.22
  6. Step 6: Final answer
    x = 102,789.68

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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.