Home / 103,406.08-155,110.08-66,496

Finding the Fourth Proportional to 103,406.08, 155,110.08 and 66,496

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Solution

The fourth proportional to 103,406.08, 155,110.08 and 66,496 is: 99,744.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,406.08 : 155,110.08 = 66,496 : x
  2. Step 2: Convert to fraction form
    103,406.08/155,110.08 = 66,496/x
  3. Step 3: Cross multiply
    103,406.08x = 155,110.08 × 66,496
  4. Step 4: Simplify right side
    103,406.08x = 10,314,199,879.68
  5. Step 5: Solve for x
    x = 10,314,199,879.68/103,406.08
  6. Step 6: Final answer
    x = 99,744.62

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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.