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Finding the Fourth Proportional to 168,017.60, 252,026.40 and 126,027.20

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Solution

The fourth proportional to 168,017.60, 252,026.40 and 126,027.20 is: 189,040.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,017.60 : 252,026.40 = 126,027.20 : x
  2. Step 2: Convert to fraction form
    168,017.60/252,026.40 = 126,027.20/x
  3. Step 3: Cross multiply
    168,017.60x = 252,026.40 × 126,027.20
  4. Step 4: Simplify right side
    168,017.60x = 31,762,181,518.08
  5. Step 5: Solve for x
    x = 31,762,181,518.08/168,017.60
  6. Step 6: Final answer
    x = 189,040.80

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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.