Home / 149,548.95-206,376.75-81,564.66

Finding the Fourth Proportional to 149,548.95, 206,376.75 and 81,564.66

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Solution

The fourth proportional to 149,548.95, 206,376.75 and 81,564.66 is: 112,558.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,548.95 : 206,376.75 = 81,564.66 : x
  2. Step 2: Convert to fraction form
    149,548.95/206,376.75 = 81,564.66/x
  3. Step 3: Cross multiply
    149,548.95x = 206,376.75 × 81,564.66
  4. Step 4: Simplify right side
    149,548.95x = 16,833,049,445.66
  5. Step 5: Solve for x
    x = 16,833,049,445.66/149,548.95
  6. Step 6: Final answer
    x = 112,558.79

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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.