Home / 149,731.95-206,669.84-86,076.75

Finding the Fourth Proportional to 149,731.95, 206,669.84 and 86,076.75

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Solution

The fourth proportional to 149,731.95, 206,669.84 and 86,076.75 is: 118,808.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,731.95 : 206,669.84 = 86,076.75 : x
  2. Step 2: Convert to fraction form
    149,731.95/206,669.84 = 86,076.75/x
  3. Step 3: Cross multiply
    149,731.95x = 206,669.84 × 86,076.75
  4. Step 4: Simplify right side
    149,731.95x = 17,789,467,719.84
  5. Step 5: Solve for x
    x = 17,789,467,719.84/149,731.95
  6. Step 6: Final answer
    x = 118,808.76

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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.