Home / 209,088.06-313,325.88-103,696.56

Finding the Fourth Proportional to 209,088.06, 313,325.88 and 103,696.56

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Solution

The fourth proportional to 209,088.06, 313,325.88 and 103,696.56 is: 155,392.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,088.06 : 313,325.88 = 103,696.56 : x
  2. Step 2: Convert to fraction form
    209,088.06/313,325.88 = 103,696.56/x
  3. Step 3: Cross multiply
    209,088.06x = 313,325.88 × 103,696.56
  4. Step 4: Simplify right side
    209,088.06x = 32,490,815,914.97
  5. Step 5: Solve for x
    x = 32,490,815,914.97/209,088.06
  6. Step 6: Final answer
    x = 155,392.98

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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.