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Finding the Fourth Proportional to 109,878.20, 164,807.70 and 36,006.20

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Solution

The fourth proportional to 109,878.20, 164,807.70 and 36,006.20 is: 54,006.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,878.20 : 164,807.70 = 36,006.20 : x
  2. Step 2: Convert to fraction form
    109,878.20/164,807.70 = 36,006.20/x
  3. Step 3: Cross multiply
    109,878.20x = 164,807.70 × 36,006.20
  4. Step 4: Simplify right side
    109,878.20x = 5,934,099,007.74
  5. Step 5: Solve for x
    x = 5,934,099,007.74/109,878.20
  6. Step 6: Final answer
    x = 54,006.15

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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.