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Finding the Fourth Proportional to 110,719.20, 166,078.80 and 101,042.40

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Solution

The fourth proportional to 110,719.20, 166,078.80 and 101,042.40 is: 151,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,719.20 : 166,078.80 = 101,042.40 : x
  2. Step 2: Convert to fraction form
    110,719.20/166,078.80 = 101,042.40/x
  3. Step 3: Cross multiply
    110,719.20x = 166,078.80 × 101,042.40
  4. Step 4: Simplify right side
    110,719.20x = 16,781,000,541.12
  5. Step 5: Solve for x
    x = 16,781,000,541.12/110,719.20
  6. Step 6: Final answer
    x = 151,563.60

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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.