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Finding the Fourth Proportional to 118,333.60, 163,301.20 and 64,617.60

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Solution

The fourth proportional to 118,333.60, 163,301.20 and 64,617.60 is: 89,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,333.60 : 163,301.20 = 64,617.60 : x
  2. Step 2: Convert to fraction form
    118,333.60/163,301.20 = 64,617.60/x
  3. Step 3: Cross multiply
    118,333.60x = 163,301.20 × 64,617.60
  4. Step 4: Simplify right side
    118,333.60x = 10,552,131,621.12
  5. Step 5: Solve for x
    x = 10,552,131,621.12/118,333.60
  6. Step 6: Final answer
    x = 89,172.74

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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.