Home / 149,904.78-206,862.45-81,924

Finding the Fourth Proportional to 149,904.78, 206,862.45 and 81,924

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Solution

The fourth proportional to 149,904.78, 206,862.45 and 81,924 is: 113,051.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,904.78 : 206,862.45 = 81,924 : x
  2. Step 2: Convert to fraction form
    149,904.78/206,862.45 = 81,924/x
  3. Step 3: Cross multiply
    149,904.78x = 206,862.45 × 81,924
  4. Step 4: Simplify right side
    149,904.78x = 16,946,999,353.80
  5. Step 5: Solve for x
    x = 16,946,999,353.80/149,904.78
  6. Step 6: Final answer
    x = 113,051.76

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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.