Home / 103,359.10-155,002.20-36,801.40

Finding the Fourth Proportional to 103,359.10, 155,002.20 and 36,801.40

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Solution

The fourth proportional to 103,359.10, 155,002.20 and 36,801.40 is: 55,189.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,359.10 : 155,002.20 = 36,801.40 : x
  2. Step 2: Convert to fraction form
    103,359.10/155,002.20 = 36,801.40/x
  3. Step 3: Cross multiply
    103,359.10x = 155,002.20 × 36,801.40
  4. Step 4: Simplify right side
    103,359.10x = 5,704,297,963.08
  5. Step 5: Solve for x
    x = 5,704,297,963.08/103,359.10
  6. Step 6: Final answer
    x = 55,189.12

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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.