Home / 105,623.87-158,329.13-66,208.64

Finding the Fourth Proportional to 105,623.87, 158,329.13 and 66,208.64

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Solution

The fourth proportional to 105,623.87, 158,329.13 and 66,208.64 is: 99,246.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,623.87 : 158,329.13 = 66,208.64 : x
  2. Step 2: Convert to fraction form
    105,623.87/158,329.13 = 66,208.64/x
  3. Step 3: Cross multiply
    105,623.87x = 158,329.13 × 66,208.64
  4. Step 4: Simplify right side
    105,623.87x = 10,482,755,246.99
  5. Step 5: Solve for x
    x = 10,482,755,246.99/105,623.87
  6. Step 6: Final answer
    x = 99,246.09

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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.