Home / 103,414.90-155,122.35-36,930.10

Finding the Fourth Proportional to 103,414.90, 155,122.35 and 36,930.10

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Solution

The fourth proportional to 103,414.90, 155,122.35 and 36,930.10 is: 55,395.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,414.90 : 155,122.35 = 36,930.10 : x
  2. Step 2: Convert to fraction form
    103,414.90/155,122.35 = 36,930.10/x
  3. Step 3: Cross multiply
    103,414.90x = 155,122.35 × 36,930.10
  4. Step 4: Simplify right side
    103,414.90x = 5,728,683,897.74
  5. Step 5: Solve for x
    x = 5,728,683,897.74/103,414.90
  6. Step 6: Final answer
    x = 55,395.15

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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.