Home / 149,833.58-206,776.61-86,171.42

Finding the Fourth Proportional to 149,833.58, 206,776.61 and 86,171.42

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Solution

The fourth proportional to 149,833.58, 206,776.61 and 86,171.42 is: 118,920.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,833.58 : 206,776.61 = 86,171.42 : x
  2. Step 2: Convert to fraction form
    149,833.58/206,776.61 = 86,171.42/x
  3. Step 3: Cross multiply
    149,833.58x = 206,776.61 × 86,171.42
  4. Step 4: Simplify right side
    149,833.58x = 17,818,232,641.75
  5. Step 5: Solve for x
    x = 17,818,232,641.75/149,833.58
  6. Step 6: Final answer
    x = 118,920.16

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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.