Home / 113,446.08-156,553.38-71,028

Finding the Fourth Proportional to 113,446.08, 156,553.38 and 71,028

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Solution

The fourth proportional to 113,446.08, 156,553.38 and 71,028 is: 98,017.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,446.08 : 156,553.38 = 71,028 : x
  2. Step 2: Convert to fraction form
    113,446.08/156,553.38 = 71,028/x
  3. Step 3: Cross multiply
    113,446.08x = 156,553.38 × 71,028
  4. Step 4: Simplify right side
    113,446.08x = 11,119,673,474.64
  5. Step 5: Solve for x
    x = 11,119,673,474.64/113,446.08
  6. Step 6: Final answer
    x = 98,017.26

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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.