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Finding the Fourth Proportional to 168,425.40, 252,638.10 and 101,065.80

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Solution

The fourth proportional to 168,425.40, 252,638.10 and 101,065.80 is: 151,598.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,425.40 : 252,638.10 = 101,065.80 : x
  2. Step 2: Convert to fraction form
    168,425.40/252,638.10 = 101,065.80/x
  3. Step 3: Cross multiply
    168,425.40x = 252,638.10 × 101,065.80
  4. Step 4: Simplify right side
    168,425.40x = 25,533,071,686.98
  5. Step 5: Solve for x
    x = 25,533,071,686.98/168,425.40
  6. Step 6: Final answer
    x = 151,598.70

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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.