Home / 122,419.23-169,046.64-77,173.04

Finding the Fourth Proportional to 122,419.23, 169,046.64 and 77,173.04

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Solution

The fourth proportional to 122,419.23, 169,046.64 and 77,173.04 is: 106,566.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,419.23 : 169,046.64 = 77,173.04 : x
  2. Step 2: Convert to fraction form
    122,419.23/169,046.64 = 77,173.04/x
  3. Step 3: Cross multiply
    122,419.23x = 169,046.64 × 77,173.04
  4. Step 4: Simplify right side
    122,419.23x = 13,045,842,265.35
  5. Step 5: Solve for x
    x = 13,045,842,265.35/122,419.23
  6. Step 6: Final answer
    x = 106,566.94

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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.