Home / 149,684.72-206,600.32-86,059.52

Finding the Fourth Proportional to 149,684.72, 206,600.32 and 86,059.52

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Solution

The fourth proportional to 149,684.72, 206,600.32 and 86,059.52 is: 118,782.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,684.72 : 206,600.32 = 86,059.52 : x
  2. Step 2: Convert to fraction form
    149,684.72/206,600.32 = 86,059.52/x
  3. Step 3: Cross multiply
    149,684.72x = 206,600.32 × 86,059.52
  4. Step 4: Simplify right side
    149,684.72x = 17,779,924,371.05
  5. Step 5: Solve for x
    x = 17,779,924,371.05/149,684.72
  6. Step 6: Final answer
    x = 118,782.49

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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.