Home / 103,168.32-154,752.60-28,289.10

Finding the Fourth Proportional to 103,168.32, 154,752.60 and 28,289.10

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Solution

The fourth proportional to 103,168.32, 154,752.60 and 28,289.10 is: 42,433.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,168.32 : 154,752.60 = 28,289.10 : x
  2. Step 2: Convert to fraction form
    103,168.32/154,752.60 = 28,289.10/x
  3. Step 3: Cross multiply
    103,168.32x = 154,752.60 × 28,289.10
  4. Step 4: Simplify right side
    103,168.32x = 4,377,811,776.66
  5. Step 5: Solve for x
    x = 4,377,811,776.66/103,168.32
  6. Step 6: Final answer
    x = 42,433.68

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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.