Home / 149,865.60-206,827.65-86,223.90

Finding the Fourth Proportional to 149,865.60, 206,827.65 and 86,223.90

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Solution

The fourth proportional to 149,865.60, 206,827.65 and 86,223.90 is: 118,996.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,865.60 : 206,827.65 = 86,223.90 : x
  2. Step 2: Convert to fraction form
    149,865.60/206,827.65 = 86,223.90/x
  3. Step 3: Cross multiply
    149,865.60x = 206,827.65 × 86,223.90
  4. Step 4: Simplify right side
    149,865.60x = 17,833,486,610.84
  5. Step 5: Solve for x
    x = 17,833,486,610.84/149,865.60
  6. Step 6: Final answer
    x = 118,996.53

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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.