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Finding the Fourth Proportional to 151,362.03, 208,879.66 and 87,736.74

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Solution

The fourth proportional to 151,362.03, 208,879.66 and 87,736.74 is: 121,076.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,362.03 : 208,879.66 = 87,736.74 : x
  2. Step 2: Convert to fraction form
    151,362.03/208,879.66 = 87,736.74/x
  3. Step 3: Cross multiply
    151,362.03x = 208,879.66 × 87,736.74
  4. Step 4: Simplify right side
    151,362.03x = 18,326,418,937.63
  5. Step 5: Solve for x
    x = 18,326,418,937.63/151,362.03
  6. Step 6: Final answer
    x = 121,076.73

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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.