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Finding the Fourth Proportional to 103,181.60, 154,772.40 and 96,960.80

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Solution

The fourth proportional to 103,181.60, 154,772.40 and 96,960.80 is: 145,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,181.60 : 154,772.40 = 96,960.80 : x
  2. Step 2: Convert to fraction form
    103,181.60/154,772.40 = 96,960.80/x
  3. Step 3: Cross multiply
    103,181.60x = 154,772.40 × 96,960.80
  4. Step 4: Simplify right side
    103,181.60x = 15,006,855,721.92
  5. Step 5: Solve for x
    x = 15,006,855,721.92/103,181.60
  6. Step 6: Final answer
    x = 145,441.20

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1.5x scale

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.