Home / 103,591.06-155,386.59-68,522.51

Finding the Fourth Proportional to 103,591.06, 155,386.59 and 68,522.51

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Solution

The fourth proportional to 103,591.06, 155,386.59 and 68,522.51 is: 102,783.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,591.06 : 155,386.59 = 68,522.51 : x
  2. Step 2: Convert to fraction form
    103,591.06/155,386.59 = 68,522.51/x
  3. Step 3: Cross multiply
    103,591.06x = 155,386.59 × 68,522.51
  4. Step 4: Simplify right side
    103,591.06x = 10,647,479,167.14
  5. Step 5: Solve for x
    x = 10,647,479,167.14/103,591.06
  6. Step 6: Final answer
    x = 102,783.77

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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.