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Finding the Fourth Proportional to 103,422.20, 155,133.36 and 29,550.20

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Solution

The fourth proportional to 103,422.20, 155,133.36 and 29,550.20 is: 44,325.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,422.20 : 155,133.36 = 29,550.20 : x
  2. Step 2: Convert to fraction form
    103,422.20/155,133.36 = 29,550.20/x
  3. Step 3: Cross multiply
    103,422.20x = 155,133.36 × 29,550.20
  4. Step 4: Simplify right side
    103,422.20x = 4,584,221,814.67
  5. Step 5: Solve for x
    x = 4,584,221,814.67/103,422.20
  6. Step 6: Final answer
    x = 44,325.32

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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.