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Finding the Fourth Proportional to 103,361.10, 155,005.20 and 36,803.40

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Solution

The fourth proportional to 103,361.10, 155,005.20 and 36,803.40 is: 55,192.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,361.10 : 155,005.20 = 36,803.40 : x
  2. Step 2: Convert to fraction form
    103,361.10/155,005.20 = 36,803.40/x
  3. Step 3: Cross multiply
    103,361.10x = 155,005.20 × 36,803.40
  4. Step 4: Simplify right side
    103,361.10x = 5,704,718,377.68
  5. Step 5: Solve for x
    x = 5,704,718,377.68/103,361.10
  6. Step 6: Final answer
    x = 55,192.12

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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.