Home / 103,876,103.40-155,608,868.70-91,111,021.80

Finding the Fourth Proportional to 103,876,103.40, 155,608,868.70 and 91,111,021.80

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Solution

The fourth proportional to 103,876,103.40, 155,608,868.70 and 91,111,021.80 is: 136,486,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,876,103.40 : 155,608,868.70 = 91,111,021.80 : x
  2. Step 2: Convert to fraction form
    103,876,103.40/155,608,868.70 = 91,111,021.80/x
  3. Step 3: Cross multiply
    103,876,103.40x = 155,608,868.70 × 91,111,021.80
  4. Step 4: Simplify right side
    103,876,103.40x = 14,177,683,028,399,036
  5. Step 5: Solve for x
    x = 14,177,683,028,399,036/103,876,103.40
  6. Step 6: Final answer
    x = 136,486,473.45

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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.