Home / 134,862.74-186,134.69-80,418.41

Finding the Fourth Proportional to 134,862.74, 186,134.69 and 80,418.41

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Solution

The fourth proportional to 134,862.74, 186,134.69 and 80,418.41 is: 110,991.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,862.74 : 186,134.69 = 80,418.41 : x
  2. Step 2: Convert to fraction form
    134,862.74/186,134.69 = 80,418.41/x
  3. Step 3: Cross multiply
    134,862.74x = 186,134.69 × 80,418.41
  4. Step 4: Simplify right side
    134,862.74x = 14,968,655,815.64
  5. Step 5: Solve for x
    x = 14,968,655,815.64/134,862.74
  6. Step 6: Final answer
    x = 110,991.78

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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.