Home / 128,822.10-193,233.15-54,026.70

Finding the Fourth Proportional to 128,822.10, 193,233.15 and 54,026.70

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Solution

The fourth proportional to 128,822.10, 193,233.15 and 54,026.70 is: 81,040.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,822.10 : 193,233.15 = 54,026.70 : x
  2. Step 2: Convert to fraction form
    128,822.10/193,233.15 = 54,026.70/x
  3. Step 3: Cross multiply
    128,822.10x = 193,233.15 × 54,026.70
  4. Step 4: Simplify right side
    128,822.10x = 10,439,749,425.11
  5. Step 5: Solve for x
    x = 10,439,749,425.11/128,822.10
  6. Step 6: Final answer
    x = 81,040.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.