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Finding the Fourth Proportional to 103,646.88, 155,470.28 and 28,767.02

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Solution

The fourth proportional to 103,646.88, 155,470.28 and 28,767.02 is: 43,150.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,646.88 : 155,470.28 = 28,767.02 : x
  2. Step 2: Convert to fraction form
    103,646.88/155,470.28 = 28,767.02/x
  3. Step 3: Cross multiply
    103,646.88x = 155,470.28 × 28,767.02
  4. Step 4: Simplify right side
    103,646.88x = 4,472,415,732.98
  5. Step 5: Solve for x
    x = 4,472,415,732.98/103,646.88
  6. Step 6: Final answer
    x = 43,150.51

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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.