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Finding the Fourth Proportional to 118,561.26, 163,612.48 and 64,845.10

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Solution

The fourth proportional to 118,561.26, 163,612.48 and 64,845.10 is: 89,485.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,561.26 : 163,612.48 = 64,845.10 : x
  2. Step 2: Convert to fraction form
    118,561.26/163,612.48 = 64,845.10/x
  3. Step 3: Cross multiply
    118,561.26x = 163,612.48 × 64,845.10
  4. Step 4: Simplify right side
    118,561.26x = 10,609,467,626.85
  5. Step 5: Solve for x
    x = 10,609,467,626.85/118,561.26
  6. Step 6: Final answer
    x = 89,485.11

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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.