Home / 168,014.30-252,021.45-74,520.05

Finding the Fourth Proportional to 168,014.30, 252,021.45 and 74,520.05

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Solution

The fourth proportional to 168,014.30, 252,021.45 and 74,520.05 is: 111,780.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,014.30 : 252,021.45 = 74,520.05 : x
  2. Step 2: Convert to fraction form
    168,014.30/252,021.45 = 74,520.05/x
  3. Step 3: Cross multiply
    168,014.30x = 252,021.45 × 74,520.05
  4. Step 4: Simplify right side
    168,014.30x = 18,780,651,055.07
  5. Step 5: Solve for x
    x = 18,780,651,055.07/168,014.30
  6. Step 6: Final answer
    x = 111,780.08

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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.