Home / 122,739.04-169,386-69,040.96

Finding the Fourth Proportional to 122,739.04, 169,386 and 69,040.96

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Solution

The fourth proportional to 122,739.04, 169,386 and 69,040.96 is: 95,279.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,739.04 : 169,386 = 69,040.96 : x
  2. Step 2: Convert to fraction form
    122,739.04/169,386 = 69,040.96/x
  3. Step 3: Cross multiply
    122,739.04x = 169,386 × 69,040.96
  4. Step 4: Simplify right side
    122,739.04x = 11,694,572,050.56
  5. Step 5: Solve for x
    x = 11,694,572,050.56/122,739.04
  6. Step 6: Final answer
    x = 95,279.97

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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.