Home / 103,484,986.76-155,335,146.14-76,222,063.46

Finding the Fourth Proportional to 103,484,986.76, 155,335,146.14 and 76,222,063.46

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Solution

The fourth proportional to 103,484,986.76, 155,335,146.14 and 76,222,063.46 is: 114,412,396.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,484,986.76 : 155,335,146.14 = 76,222,063.46 : x
  2. Step 2: Convert to fraction form
    103,484,986.76/155,335,146.14 = 76,222,063.46/x
  3. Step 3: Cross multiply
    103,484,986.76x = 155,335,146.14 × 76,222,063.46
  4. Step 4: Simplify right side
    103,484,986.76x = 11,839,965,367,230,348
  5. Step 5: Solve for x
    x = 11,839,965,367,230,348/103,484,986.76
  6. Step 6: Final answer
    x = 114,412,396.79

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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.