Home / 128,872.08-193,307.76-35,377.92

Finding the Fourth Proportional to 128,872.08, 193,307.76 and 35,377.92

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Solution

The fourth proportional to 128,872.08, 193,307.76 and 35,377.92 is: 53,066.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,872.08 : 193,307.76 = 35,377.92 : x
  2. Step 2: Convert to fraction form
    128,872.08/193,307.76 = 35,377.92/x
  3. Step 3: Cross multiply
    128,872.08x = 193,307.76 × 35,377.92
  4. Step 4: Simplify right side
    128,872.08x = 6,838,826,468.66
  5. Step 5: Solve for x
    x = 6,838,826,468.66/128,872.08
  6. Step 6: Final answer
    x = 53,066.78

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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.