Home / 135,298.06-186,711.65-74,872.83

Finding the Fourth Proportional to 135,298.06, 186,711.65 and 74,872.83

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Solution

The fourth proportional to 135,298.06, 186,711.65 and 74,872.83 is: 103,324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,298.06 : 186,711.65 = 74,872.83 : x
  2. Step 2: Convert to fraction form
    135,298.06/186,711.65 = 74,872.83/x
  3. Step 3: Cross multiply
    135,298.06x = 186,711.65 × 74,872.83
  4. Step 4: Simplify right side
    135,298.06x = 13,979,630,236.05
  5. Step 5: Solve for x
    x = 13,979,630,236.05/135,298.06
  6. Step 6: Final answer
    x = 103,324.69

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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.