Home / 149,867.68-206,817.24-86,203.84

Finding the Fourth Proportional to 149,867.68, 206,817.24 and 86,203.84

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Solution

The fourth proportional to 149,867.68, 206,817.24 and 86,203.84 is: 118,961.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,867.68 : 206,817.24 = 86,203.84 : x
  2. Step 2: Convert to fraction form
    149,867.68/206,817.24 = 86,203.84/x
  3. Step 3: Cross multiply
    149,867.68x = 206,817.24 × 86,203.84
  4. Step 4: Simplify right side
    149,867.68x = 17,828,440,266.20
  5. Step 5: Solve for x
    x = 17,828,440,266.20/149,867.68
  6. Step 6: Final answer
    x = 118,961.21

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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.