Home / 122,282.69-168,764.18-81,444.56

Finding the Fourth Proportional to 122,282.69, 168,764.18 and 81,444.56

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Solution

The fourth proportional to 122,282.69, 168,764.18 and 81,444.56 is: 112,402.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,282.69 : 168,764.18 = 81,444.56 : x
  2. Step 2: Convert to fraction form
    122,282.69/168,764.18 = 81,444.56/x
  3. Step 3: Cross multiply
    122,282.69x = 168,764.18 × 81,444.56
  4. Step 4: Simplify right side
    122,282.69x = 13,744,923,132.82
  5. Step 5: Solve for x
    x = 13,744,923,132.82/122,282.69
  6. Step 6: Final answer
    x = 112,402.86

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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.