Home / 149,678.30-206,591.53-86,053.06

Finding the Fourth Proportional to 149,678.30, 206,591.53 and 86,053.06

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Solution

The fourth proportional to 149,678.30, 206,591.53 and 86,053.06 is: 118,773.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,678.30 : 206,591.53 = 86,053.06 : x
  2. Step 2: Convert to fraction form
    149,678.30/206,591.53 = 86,053.06/x
  3. Step 3: Cross multiply
    149,678.30x = 206,591.53 × 86,053.06
  4. Step 4: Simplify right side
    149,678.30x = 17,777,833,326.58
  5. Step 5: Solve for x
    x = 17,777,833,326.58/149,678.30
  6. Step 6: Final answer
    x = 118,773.62

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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.