Home / 106,345,679.40-159,518,519.10-91,040,178.60

Finding the Fourth Proportional to 106,345,679.40, 159,518,519.10 and 91,040,178.60

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Solution

The fourth proportional to 106,345,679.40, 159,518,519.10 and 91,040,178.60 is: 136,560,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,345,679.40 : 159,518,519.10 = 91,040,178.60 : x
  2. Step 2: Convert to fraction form
    106,345,679.40/159,518,519.10 = 91,040,178.60/x
  3. Step 3: Cross multiply
    106,345,679.40x = 159,518,519.10 × 91,040,178.60
  4. Step 4: Simplify right side
    106,345,679.40x = 14,522,594,468,871,510
  5. Step 5: Solve for x
    x = 14,522,594,468,871,510/106,345,679.40
  6. Step 6: Final answer
    x = 136,560,267.90

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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.