Home / 148,444.13-204,865.85-81,389.09

Finding the Fourth Proportional to 148,444.13, 204,865.85 and 81,389.09

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Solution

The fourth proportional to 148,444.13, 204,865.85 and 81,389.09 is: 112,324.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,444.13 : 204,865.85 = 81,389.09 : x
  2. Step 2: Convert to fraction form
    148,444.13/204,865.85 = 81,389.09/x
  3. Step 3: Cross multiply
    148,444.13x = 204,865.85 × 81,389.09
  4. Step 4: Simplify right side
    148,444.13x = 16,673,845,103.58
  5. Step 5: Solve for x
    x = 16,673,845,103.58/148,444.13
  6. Step 6: Final answer
    x = 112,324.04

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1.5x scale

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.