Home / 128,734.16-193,101.24-35,239.90

Finding the Fourth Proportional to 128,734.16, 193,101.24 and 35,239.90

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Solution

The fourth proportional to 128,734.16, 193,101.24 and 35,239.90 is: 52,859.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,734.16 : 193,101.24 = 35,239.90 : x
  2. Step 2: Convert to fraction form
    128,734.16/193,101.24 = 35,239.90/x
  3. Step 3: Cross multiply
    128,734.16x = 193,101.24 × 35,239.90
  4. Step 4: Simplify right side
    128,734.16x = 6,804,868,387.48
  5. Step 5: Solve for x
    x = 6,804,868,387.48/128,734.16
  6. Step 6: Final answer
    x = 52,859.85

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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.