Home / 103,299.03-154,928.15-28,399.86

Finding the Fourth Proportional to 103,299.03, 154,928.15 and 28,399.86

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Solution

The fourth proportional to 103,299.03, 154,928.15 and 28,399.86 is: 42,594.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,299.03 : 154,928.15 = 28,399.86 : x
  2. Step 2: Convert to fraction form
    103,299.03/154,928.15 = 28,399.86/x
  3. Step 3: Cross multiply
    103,299.03x = 154,928.15 × 28,399.86
  4. Step 4: Simplify right side
    103,299.03x = 4,399,937,628.06
  5. Step 5: Solve for x
    x = 4,399,937,628.06/103,299.03
  6. Step 6: Final answer
    x = 42,594.18

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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.