Home / 168,701.30-252,979.05-84,428.90

Finding the Fourth Proportional to 168,701.30, 252,979.05 and 84,428.90

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Solution

The fourth proportional to 168,701.30, 252,979.05 and 84,428.90 is: 126,606.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,701.30 : 252,979.05 = 84,428.90 : x
  2. Step 2: Convert to fraction form
    168,701.30/252,979.05 = 84,428.90/x
  3. Step 3: Cross multiply
    168,701.30x = 252,979.05 × 84,428.90
  4. Step 4: Simplify right side
    168,701.30x = 21,358,742,914.55
  5. Step 5: Solve for x
    x = 21,358,742,914.55/168,701.30
  6. Step 6: Final answer
    x = 126,606.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.