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Finding the Fourth Proportional to 108,706.40, 163,059.60 and 100,833.20

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Solution

The fourth proportional to 108,706.40, 163,059.60 and 100,833.20 is: 151,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,706.40 : 163,059.60 = 100,833.20 : x
  2. Step 2: Convert to fraction form
    108,706.40/163,059.60 = 100,833.20/x
  3. Step 3: Cross multiply
    108,706.40x = 163,059.60 × 100,833.20
  4. Step 4: Simplify right side
    108,706.40x = 16,441,821,258.72
  5. Step 5: Solve for x
    x = 16,441,821,258.72/108,706.40
  6. Step 6: Final answer
    x = 151,249.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.