Home / 126,911.93-175,138.40-75,926.81

Finding the Fourth Proportional to 126,911.93, 175,138.40 and 75,926.81

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Solution

The fourth proportional to 126,911.93, 175,138.40 and 75,926.81 is: 104,778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,911.93 : 175,138.40 = 75,926.81 : x
  2. Step 2: Convert to fraction form
    126,911.93/175,138.40 = 75,926.81/x
  3. Step 3: Cross multiply
    126,911.93x = 175,138.40 × 75,926.81
  4. Step 4: Simplify right side
    126,911.93x = 13,297,700,648.17
  5. Step 5: Solve for x
    x = 13,297,700,648.17/126,911.93
  6. Step 6: Final answer
    x = 104,778.97

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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.