Home / 103,689.62-155,285.26-59,181.43

Finding the Fourth Proportional to 103,689.62, 155,285.26 and 59,181.43

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Solution

The fourth proportional to 103,689.62, 155,285.26 and 59,181.43 is: 88,629.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,689.62 : 155,285.26 = 59,181.43 : x
  2. Step 2: Convert to fraction form
    103,689.62/155,285.26 = 59,181.43/x
  3. Step 3: Cross multiply
    103,689.62x = 155,285.26 × 59,181.43
  4. Step 4: Simplify right side
    103,689.62x = 9,190,003,744.72
  5. Step 5: Solve for x
    x = 9,190,003,744.72/103,689.62
  6. Step 6: Final answer
    x = 88,629.93

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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.