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Finding the Fourth Proportional to 103,670.00, 155,412.42 and 40,475.42

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Solution

The fourth proportional to 103,670.00, 155,412.42 and 40,475.42 is: 60,676.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,670.00 : 155,412.42 = 40,475.42 : x
  2. Step 2: Convert to fraction form
    103,670.00/155,412.42 = 40,475.42/x
  3. Step 3: Cross multiply
    103,670.00x = 155,412.42 × 40,475.42
  4. Step 4: Simplify right side
    103,670.00x = 6,290,382,195.65
  5. Step 5: Solve for x
    x = 6,290,382,195.65/103,670.00
  6. Step 6: Final answer
    x = 60,676.98

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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.