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Finding the Fourth Proportional to 151,879.44, 209,558.16 and 88,178.88

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Solution

The fourth proportional to 151,879.44, 209,558.16 and 88,178.88 is: 121,666.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,879.44 : 209,558.16 = 88,178.88 : x
  2. Step 2: Convert to fraction form
    151,879.44/209,558.16 = 88,178.88/x
  3. Step 3: Cross multiply
    151,879.44x = 209,558.16 × 88,178.88
  4. Step 4: Simplify right side
    151,879.44x = 18,478,603,843.66
  5. Step 5: Solve for x
    x = 18,478,603,843.66/151,879.44
  6. Step 6: Final answer
    x = 121,666.26

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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.