Home / 103,645.79-155,219.55-59,137.61

Finding the Fourth Proportional to 103,645.79, 155,219.55 and 59,137.61

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Solution

The fourth proportional to 103,645.79, 155,219.55 and 59,137.61 is: 88,564.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,645.79 : 155,219.55 = 59,137.61 : x
  2. Step 2: Convert to fraction form
    103,645.79/155,219.55 = 59,137.61/x
  3. Step 3: Cross multiply
    103,645.79x = 155,219.55 × 59,137.61
  4. Step 4: Simplify right side
    103,645.79x = 9,179,313,600.32
  5. Step 5: Solve for x
    x = 9,179,313,600.32/103,645.79
  6. Step 6: Final answer
    x = 88,564.27

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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.