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Finding the Fourth Proportional to 168,030.40, 252,045.60 and 129,976.60

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Solution

The fourth proportional to 168,030.40, 252,045.60 and 129,976.60 is: 194,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,030.40 : 252,045.60 = 129,976.60 : x
  2. Step 2: Convert to fraction form
    168,030.40/252,045.60 = 129,976.60/x
  3. Step 3: Cross multiply
    168,030.40x = 252,045.60 × 129,976.60
  4. Step 4: Simplify right side
    168,030.40x = 32,760,030,132.96
  5. Step 5: Solve for x
    x = 32,760,030,132.96/168,030.40
  6. Step 6: Final answer
    x = 194,964.90

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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.