Home / 103,876,215.40-155,609,036.70-91,111,133.80

Finding the Fourth Proportional to 103,876,215.40, 155,609,036.70 and 91,111,133.80

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Solution

The fourth proportional to 103,876,215.40, 155,609,036.70 and 91,111,133.80 is: 136,486,641.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,876,215.40 : 155,609,036.70 = 91,111,133.80 : x
  2. Step 2: Convert to fraction form
    103,876,215.40/155,609,036.70 = 91,111,133.80/x
  3. Step 3: Cross multiply
    103,876,215.40x = 155,609,036.70 × 91,111,133.80
  4. Step 4: Simplify right side
    103,876,215.40x = 14,177,715,763,262,808
  5. Step 5: Solve for x
    x = 14,177,715,763,262,808/103,876,215.40
  6. Step 6: Final answer
    x = 136,486,641.42

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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.