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Finding the Fourth Proportional to 103,625.65, 155,438.48 and 103,625.65

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Solution

The fourth proportional to 103,625.65, 155,438.48 and 103,625.65 is: 155,438.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,625.65 : 155,438.48 = 103,625.65 : x
  2. Step 2: Convert to fraction form
    103,625.65/155,438.48 = 103,625.65/x
  3. Step 3: Cross multiply
    103,625.65x = 155,438.48 × 103,625.65
  4. Step 4: Simplify right side
    103,625.65x = 16,107,413,525.01
  5. Step 5: Solve for x
    x = 16,107,413,525.01/103,625.65
  6. Step 6: Final answer
    x = 155,438.48

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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.