Home / 107,681.44-148,286.82-83,767.84

Finding the Fourth Proportional to 107,681.44, 148,286.82 and 83,767.84

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Solution

The fourth proportional to 107,681.44, 148,286.82 and 83,767.84 is: 115,355.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,681.44 : 148,286.82 = 83,767.84 : x
  2. Step 2: Convert to fraction form
    107,681.44/148,286.82 = 83,767.84/x
  3. Step 3: Cross multiply
    107,681.44x = 148,286.82 × 83,767.84
  4. Step 4: Simplify right side
    107,681.44x = 12,421,666,611.87
  5. Step 5: Solve for x
    x = 12,421,666,611.87/107,681.44
  6. Step 6: Final answer
    x = 115,355.69

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1.5x scale

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.