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Finding the Fourth Proportional to 108,718.60, 163,077.90 and 100,845.40

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Solution

The fourth proportional to 108,718.60, 163,077.90 and 100,845.40 is: 151,268.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,718.60 : 163,077.90 = 100,845.40 : x
  2. Step 2: Convert to fraction form
    108,718.60/163,077.90 = 100,845.40/x
  3. Step 3: Cross multiply
    108,718.60x = 163,077.90 × 100,845.40
  4. Step 4: Simplify right side
    108,718.60x = 16,445,656,056.66
  5. Step 5: Solve for x
    x = 16,445,656,056.66/108,718.60
  6. Step 6: Final answer
    x = 151,268.10

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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.