Home / 107,660.72-148,417.82-75,730.52

Finding the Fourth Proportional to 107,660.72, 148,417.82 and 75,730.52

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Solution

The fourth proportional to 107,660.72, 148,417.82 and 75,730.52 is: 104,399.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,660.72 : 148,417.82 = 75,730.52 : x
  2. Step 2: Convert to fraction form
    107,660.72/148,417.82 = 75,730.52/x
  3. Step 3: Cross multiply
    107,660.72x = 148,417.82 × 75,730.52
  4. Step 4: Simplify right side
    107,660.72x = 11,239,758,685.87
  5. Step 5: Solve for x
    x = 11,239,758,685.87/107,660.72
  6. Step 6: Final answer
    x = 104,399.81

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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.