Home / 122,402.48-168,892.98-82,174.64

Finding the Fourth Proportional to 122,402.48, 168,892.98 and 82,174.64

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Solution

The fourth proportional to 122,402.48, 168,892.98 and 82,174.64 is: 113,385.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,402.48 : 168,892.98 = 82,174.64 : x
  2. Step 2: Convert to fraction form
    122,402.48/168,892.98 = 82,174.64/x
  3. Step 3: Cross multiply
    122,402.48x = 168,892.98 × 82,174.64
  4. Step 4: Simplify right side
    122,402.48x = 13,878,719,830.03
  5. Step 5: Solve for x
    x = 13,878,719,830.03/122,402.48
  6. Step 6: Final answer
    x = 113,385.94

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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.