Home / 128,675.28-193,003.62-39,926.52

Finding the Fourth Proportional to 128,675.28, 193,003.62 and 39,926.52

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Solution

The fourth proportional to 128,675.28, 193,003.62 and 39,926.52 is: 59,886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,675.28 : 193,003.62 = 39,926.52 : x
  2. Step 2: Convert to fraction form
    128,675.28/193,003.62 = 39,926.52/x
  3. Step 3: Cross multiply
    128,675.28x = 193,003.62 × 39,926.52
  4. Step 4: Simplify right side
    128,675.28x = 7,705,962,894.00
  5. Step 5: Solve for x
    x = 7,705,962,894.00/128,675.28
  6. Step 6: Final answer
    x = 59,886.89

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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.