Home / 103,876,109.90-155,608,878.45-91,111,028.30

Finding the Fourth Proportional to 103,876,109.90, 155,608,878.45 and 91,111,028.30

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Solution

The fourth proportional to 103,876,109.90, 155,608,878.45 and 91,111,028.30 is: 136,486,483.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,876,109.90 : 155,608,878.45 = 91,111,028.30 : x
  2. Step 2: Convert to fraction form
    103,876,109.90/155,608,878.45 = 91,111,028.30/x
  3. Step 3: Cross multiply
    103,876,109.90x = 155,608,878.45 × 91,111,028.30
  4. Step 4: Simplify right side
    103,876,109.90x = 14,177,684,928,189,208
  5. Step 5: Solve for x
    x = 14,177,684,928,189,208/103,876,109.90
  6. Step 6: Final answer
    x = 136,486,483.19

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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.