Home / 141,690.11-212,498.24-66,790.37

Finding the Fourth Proportional to 141,690.11, 212,498.24 and 66,790.37

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Solution

The fourth proportional to 141,690.11, 212,498.24 and 66,790.37 is: 100,168.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,690.11 : 212,498.24 = 66,790.37 : x
  2. Step 2: Convert to fraction form
    141,690.11/212,498.24 = 66,790.37/x
  3. Step 3: Cross multiply
    141,690.11x = 212,498.24 × 66,790.37
  4. Step 4: Simplify right side
    141,690.11x = 14,192,835,178.43
  5. Step 5: Solve for x
    x = 14,192,835,178.43/141,690.11
  6. Step 6: Final answer
    x = 100,168.15

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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.