Home / 103,795.80-155,685.60-40,603.65

Finding the Fourth Proportional to 103,795.80, 155,685.60 and 40,603.65

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Solution

The fourth proportional to 103,795.80, 155,685.60 and 40,603.65 is: 60,902.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,795.80 : 155,685.60 = 40,603.65 : x
  2. Step 2: Convert to fraction form
    103,795.80/155,685.60 = 40,603.65/x
  3. Step 3: Cross multiply
    103,795.80x = 155,685.60 × 40,603.65
  4. Step 4: Simplify right side
    103,795.80x = 6,321,403,612.44
  5. Step 5: Solve for x
    x = 6,321,403,612.44/103,795.80
  6. Step 6: Final answer
    x = 60,902.31

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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.