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Finding the Fourth Proportional to 159,807.86, 220,535.48 and 88,189.94

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Solution

The fourth proportional to 159,807.86, 220,535.48 and 88,189.94 is: 121,702.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,807.86 : 220,535.48 = 88,189.94 : x
  2. Step 2: Convert to fraction form
    159,807.86/220,535.48 = 88,189.94/x
  3. Step 3: Cross multiply
    159,807.86x = 220,535.48 × 88,189.94
  4. Step 4: Simplify right side
    159,807.86x = 19,449,010,749.07
  5. Step 5: Solve for x
    x = 19,449,010,749.07/159,807.86
  6. Step 6: Final answer
    x = 121,702.47

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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.