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Finding the Fourth Proportional to 118,330.60, 163,302.86 and 64,620.60

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Solution

The fourth proportional to 118,330.60, 163,302.86 and 64,620.60 is: 89,180.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,330.60 : 163,302.86 = 64,620.60 : x
  2. Step 2: Convert to fraction form
    118,330.60/163,302.86 = 64,620.60/x
  3. Step 3: Cross multiply
    118,330.60x = 163,302.86 × 64,620.60
  4. Step 4: Simplify right side
    118,330.60x = 10,552,728,794.92
  5. Step 5: Solve for x
    x = 10,552,728,794.92/118,330.60
  6. Step 6: Final answer
    x = 89,180.05

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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.