Home / 149,591.60-206,415.98-85,929.39

Finding the Fourth Proportional to 149,591.60, 206,415.98 and 85,929.39

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Solution

The fourth proportional to 149,591.60, 206,415.98 and 85,929.39 is: 118,570.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,591.60 : 206,415.98 = 85,929.39 : x
  2. Step 2: Convert to fraction form
    149,591.60/206,415.98 = 85,929.39/x
  3. Step 3: Cross multiply
    149,591.60x = 206,415.98 × 85,929.39
  4. Step 4: Simplify right side
    149,591.60x = 17,737,199,247.65
  5. Step 5: Solve for x
    x = 17,737,199,247.65/149,591.60
  6. Step 6: Final answer
    x = 118,570.82

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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.