Home / 148,780.08-205,321.24-81,712.08

Finding the Fourth Proportional to 148,780.08, 205,321.24 and 81,712.08

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Solution

The fourth proportional to 148,780.08, 205,321.24 and 81,712.08 is: 112,765.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,780.08 : 205,321.24 = 81,712.08 : x
  2. Step 2: Convert to fraction form
    148,780.08/205,321.24 = 81,712.08/x
  3. Step 3: Cross multiply
    148,780.08x = 205,321.24 × 81,712.08
  4. Step 4: Simplify right side
    148,780.08x = 16,777,225,588.58
  5. Step 5: Solve for x
    x = 16,777,225,588.58/148,780.08
  6. Step 6: Final answer
    x = 112,765.27

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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.