Home / 141,384.15-212,054.22-91,815.66

Finding the Fourth Proportional to 141,384.15, 212,054.22 and 91,815.66

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Solution

The fourth proportional to 141,384.15, 212,054.22 and 91,815.66 is: 137,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,384.15 : 212,054.22 = 91,815.66 : x
  2. Step 2: Convert to fraction form
    141,384.15/212,054.22 = 91,815.66/x
  3. Step 3: Cross multiply
    141,384.15x = 212,054.22 × 91,815.66
  4. Step 4: Simplify right side
    141,384.15x = 19,469,898,165.09
  5. Step 5: Solve for x
    x = 19,469,898,165.09/141,384.15
  6. Step 6: Final answer
    x = 137,709.20

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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.