Home / 113,034.23-169,500.55-81,311.34

Finding the Fourth Proportional to 113,034.23, 169,500.55 and 81,311.34

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Solution

The fourth proportional to 113,034.23, 169,500.55 and 81,311.34 is: 121,930.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,034.23 : 169,500.55 = 81,311.34 : x
  2. Step 2: Convert to fraction form
    113,034.23/169,500.55 = 81,311.34/x
  3. Step 3: Cross multiply
    113,034.23x = 169,500.55 × 81,311.34
  4. Step 4: Simplify right side
    113,034.23x = 13,782,317,436.04
  5. Step 5: Solve for x
    x = 13,782,317,436.04/113,034.23
  6. Step 6: Final answer
    x = 121,930.47

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1.5x scale

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.