Home / 103,876,108.90-155,608,876.95-91,111,027.30

Finding the Fourth Proportional to 103,876,108.90, 155,608,876.95 and 91,111,027.30

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Solution

The fourth proportional to 103,876,108.90, 155,608,876.95 and 91,111,027.30 is: 136,486,481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,876,108.90 : 155,608,876.95 = 91,111,027.30 : x
  2. Step 2: Convert to fraction form
    103,876,108.90/155,608,876.95 = 91,111,027.30/x
  3. Step 3: Cross multiply
    103,876,108.90x = 155,608,876.95 × 91,111,027.30
  4. Step 4: Simplify right side
    103,876,108.90x = 14,177,684,635,913,790
  5. Step 5: Solve for x
    x = 14,177,684,635,913,790/103,876,108.90
  6. Step 6: Final answer
    x = 136,486,481.69

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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.