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Finding the Fourth Proportional to 168,014.10, 252,021.15 and 120,774.90

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Solution

The fourth proportional to 168,014.10, 252,021.15 and 120,774.90 is: 181,162.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,014.10 : 252,021.15 = 120,774.90 : x
  2. Step 2: Convert to fraction form
    168,014.10/252,021.15 = 120,774.90/x
  3. Step 3: Cross multiply
    168,014.10x = 252,021.15 × 120,774.90
  4. Step 4: Simplify right side
    168,014.10x = 30,437,829,189.14
  5. Step 5: Solve for x
    x = 30,437,829,189.14/168,014.10
  6. Step 6: Final answer
    x = 181,162.35

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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.