Home / 178,809.09-268,260.29-103,857.18

Finding the Fourth Proportional to 178,809.09, 268,260.29 and 103,857.18

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Solution

The fourth proportional to 178,809.09, 268,260.29 and 103,857.18 is: 155,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,809.09 : 268,260.29 = 103,857.18 : x
  2. Step 2: Convert to fraction form
    178,809.09/268,260.29 = 103,857.18/x
  3. Step 3: Cross multiply
    178,809.09x = 268,260.29 × 103,857.18
  4. Step 4: Simplify right side
    178,809.09x = 27,860,756,706.10
  5. Step 5: Solve for x
    x = 27,860,756,706.10/178,809.09
  6. Step 6: Final answer
    x = 155,812.87

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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.