Home / 149,580.40-206,425.56-85,930.96

Finding the Fourth Proportional to 149,580.40, 206,425.56 and 85,930.96

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Solution

The fourth proportional to 149,580.40, 206,425.56 and 85,930.96 is: 118,587.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,580.40 : 206,425.56 = 85,930.96 : x
  2. Step 2: Convert to fraction form
    149,580.40/206,425.56 = 85,930.96/x
  3. Step 3: Cross multiply
    149,580.40x = 206,425.56 × 85,930.96
  4. Step 4: Simplify right side
    149,580.40x = 17,738,346,539.34
  5. Step 5: Solve for x
    x = 17,738,346,539.34/149,580.40
  6. Step 6: Final answer
    x = 118,587.37

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1.5x scale

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.