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Finding the Fourth Proportional to 118,789.86, 163,889.03 and 67,765.79

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Solution

The fourth proportional to 118,789.86, 163,889.03 and 67,765.79 is: 93,493.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,789.86 : 163,889.03 = 67,765.79 : x
  2. Step 2: Convert to fraction form
    118,789.86/163,889.03 = 67,765.79/x
  3. Step 3: Cross multiply
    118,789.86x = 163,889.03 × 67,765.79
  4. Step 4: Simplify right side
    118,789.86x = 11,106,068,432.01
  5. Step 5: Solve for x
    x = 11,106,068,432.01/118,789.86
  6. Step 6: Final answer
    x = 93,493.40

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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.