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Finding the Fourth Proportional to 118,590.88, 163,657.84 and 64,879.42

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Solution

The fourth proportional to 118,590.88, 163,657.84 and 64,879.42 is: 89,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,590.88 : 163,657.84 = 64,879.42 : x
  2. Step 2: Convert to fraction form
    118,590.88/163,657.84 = 64,879.42/x
  3. Step 3: Cross multiply
    118,590.88x = 163,657.84 × 64,879.42
  4. Step 4: Simplify right side
    118,590.88x = 10,618,025,737.65
  5. Step 5: Solve for x
    x = 10,618,025,737.65/118,590.88
  6. Step 6: Final answer
    x = 89,534.93

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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.