Home / 103,919.55-155,490.09-74,002.94

Finding the Fourth Proportional to 103,919.55, 155,490.09 and 74,002.94

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Solution

The fourth proportional to 103,919.55, 155,490.09 and 74,002.94 is: 110,727.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,919.55 : 155,490.09 = 74,002.94 : x
  2. Step 2: Convert to fraction form
    103,919.55/155,490.09 = 74,002.94/x
  3. Step 3: Cross multiply
    103,919.55x = 155,490.09 × 74,002.94
  4. Step 4: Simplify right side
    103,919.55x = 11,506,723,023.41
  5. Step 5: Solve for x
    x = 11,506,723,023.41/103,919.55
  6. Step 6: Final answer
    x = 110,727.22

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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.