Home / 122,153.04-168,496.68-80,759.88

Finding the Fourth Proportional to 122,153.04, 168,496.68 and 80,759.88

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Solution

The fourth proportional to 122,153.04, 168,496.68 and 80,759.88 is: 111,399.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,153.04 : 168,496.68 = 80,759.88 : x
  2. Step 2: Convert to fraction form
    122,153.04/168,496.68 = 80,759.88/x
  3. Step 3: Cross multiply
    122,153.04x = 168,496.68 × 80,759.88
  4. Step 4: Simplify right side
    122,153.04x = 13,607,771,657.20
  5. Step 5: Solve for x
    x = 13,607,771,657.20/122,153.04
  6. Step 6: Final answer
    x = 111,399.37

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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.