Home / 135,486.65-186,983.07-75,076.25

Finding the Fourth Proportional to 135,486.65, 186,983.07 and 75,076.25

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Solution

The fourth proportional to 135,486.65, 186,983.07 and 75,076.25 is: 103,611.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,486.65 : 186,983.07 = 75,076.25 : x
  2. Step 2: Convert to fraction form
    135,486.65/186,983.07 = 75,076.25/x
  3. Step 3: Cross multiply
    135,486.65x = 186,983.07 × 75,076.25
  4. Step 4: Simplify right side
    135,486.65x = 14,037,986,398.79
  5. Step 5: Solve for x
    x = 14,037,986,398.79/135,486.65
  6. Step 6: Final answer
    x = 103,611.58

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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.