Home / 122,492.13-168,996.46-77,174.16

Finding the Fourth Proportional to 122,492.13, 168,996.46 and 77,174.16

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Solution

The fourth proportional to 122,492.13, 168,996.46 and 77,174.16 is: 106,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,492.13 : 168,996.46 = 77,174.16 : x
  2. Step 2: Convert to fraction form
    122,492.13/168,996.46 = 77,174.16/x
  3. Step 3: Cross multiply
    122,492.13x = 168,996.46 × 77,174.16
  4. Step 4: Simplify right side
    122,492.13x = 13,042,159,843.47
  5. Step 5: Solve for x
    x = 13,042,159,843.47/122,492.13
  6. Step 6: Final answer
    x = 106,473.45

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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.