Home / 103,136.04-154,704.18-28,256.84

Finding the Fourth Proportional to 103,136.04, 154,704.18 and 28,256.84

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Solution

The fourth proportional to 103,136.04, 154,704.18 and 28,256.84 is: 42,385.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,136.04 : 154,704.18 = 28,256.84 : x
  2. Step 2: Convert to fraction form
    103,136.04/154,704.18 = 28,256.84/x
  3. Step 3: Cross multiply
    103,136.04x = 154,704.18 × 28,256.84
  4. Step 4: Simplify right side
    103,136.04x = 4,371,451,261.59
  5. Step 5: Solve for x
    x = 4,371,451,261.59/103,136.04
  6. Step 6: Final answer
    x = 42,385.29

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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.