Home / 107,909.42-148,911.93-60,161.78

Finding the Fourth Proportional to 107,909.42, 148,911.93 and 60,161.78

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Solution

The fourth proportional to 107,909.42, 148,911.93 and 60,161.78 is: 83,021.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,909.42 : 148,911.93 = 60,161.78 : x
  2. Step 2: Convert to fraction form
    107,909.42/148,911.93 = 60,161.78/x
  3. Step 3: Cross multiply
    107,909.42x = 148,911.93 × 60,161.78
  4. Step 4: Simplify right side
    107,909.42x = 8,958,806,772.04
  5. Step 5: Solve for x
    x = 8,958,806,772.04/107,909.42
  6. Step 6: Final answer
    x = 83,021.55

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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.