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Finding the Fourth Proportional to 149,245, 205,953.32 and 88,801.80

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Solution

The fourth proportional to 149,245, 205,953.32 and 88,801.80 is: 122,543.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,245 : 205,953.32 = 88,801.80 : x
  2. Step 2: Convert to fraction form
    149,245/205,953.32 = 88,801.80/x
  3. Step 3: Cross multiply
    149,245x = 205,953.32 × 88,801.80
  4. Step 4: Simplify right side
    149,245x = 18,289,025,531.98
  5. Step 5: Solve for x
    x = 18,289,025,531.98/149,245
  6. Step 6: Final answer
    x = 122,543.64

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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.