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Finding the Fourth Proportional to 168,000.40, 252,000.60 and 112,013.20

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Solution

The fourth proportional to 168,000.40, 252,000.60 and 112,013.20 is: 168,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,000.40 : 252,000.60 = 112,013.20 : x
  2. Step 2: Convert to fraction form
    168,000.40/252,000.60 = 112,013.20/x
  3. Step 3: Cross multiply
    168,000.40x = 252,000.60 × 112,013.20
  4. Step 4: Simplify right side
    168,000.40x = 28,227,393,607.92
  5. Step 5: Solve for x
    x = 28,227,393,607.92/168,000.40
  6. Step 6: Final answer
    x = 168,019.80

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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.