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Finding the Fourth Proportional to 104,934.60, 157,401.90 and 100,852.20

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Solution

The fourth proportional to 104,934.60, 157,401.90 and 100,852.20 is: 151,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,934.60 : 157,401.90 = 100,852.20 : x
  2. Step 2: Convert to fraction form
    104,934.60/157,401.90 = 100,852.20/x
  3. Step 3: Cross multiply
    104,934.60x = 157,401.90 × 100,852.20
  4. Step 4: Simplify right side
    104,934.60x = 15,874,327,899.18
  5. Step 5: Solve for x
    x = 15,874,327,899.18/104,934.60
  6. Step 6: Final answer
    x = 151,278.30

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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.