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Finding the Fourth Proportional to 118,480.88, 163,508.01 and 64,769.54

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Solution

The fourth proportional to 118,480.88, 163,508.01 and 64,769.54 is: 89,384.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,480.88 : 163,508.01 = 64,769.54 : x
  2. Step 2: Convert to fraction form
    118,480.88/163,508.01 = 64,769.54/x
  3. Step 3: Cross multiply
    118,480.88x = 163,508.01 × 64,769.54
  4. Step 4: Simplify right side
    118,480.88x = 10,590,338,594.02
  5. Step 5: Solve for x
    x = 10,590,338,594.02/118,480.88
  6. Step 6: Final answer
    x = 89,384.37

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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.