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Finding the Fourth Proportional to 70,179.97, 105,199.02 and 30,225.01

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Solution

The fourth proportional to 70,179.97, 105,199.02 and 30,225.01 is: 45,306.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,179.97 : 105,199.02 = 30,225.01 : x
  2. Step 2: Convert to fraction form
    70,179.97/105,199.02 = 30,225.01/x
  3. Step 3: Cross multiply
    70,179.97x = 105,199.02 × 30,225.01
  4. Step 4: Simplify right side
    70,179.97x = 3,179,641,431.49
  5. Step 5: Solve for x
    x = 3,179,641,431.49/70,179.97
  6. Step 6: Final answer
    x = 45,306.96

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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.