Home / 106,419,105.15-146,930,980.20-68,833,376.40

Finding the Fourth Proportional to 106,419,105.15, 146,930,980.20 and 68,833,376.40

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Solution

The fourth proportional to 106,419,105.15, 146,930,980.20 and 68,833,376.40 is: 95,037,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,419,105.15 : 146,930,980.20 = 68,833,376.40 : x
  2. Step 2: Convert to fraction form
    106,419,105.15/146,930,980.20 = 68,833,376.40/x
  3. Step 3: Cross multiply
    106,419,105.15x = 146,930,980.20 × 68,833,376.40
  4. Step 4: Simplify right side
    106,419,105.15x = 10,113,755,464,927,548
  5. Step 5: Solve for x
    x = 10,113,755,464,927,548/106,419,105.15
  6. Step 6: Final answer
    x = 95,037,027.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.