Home / 141,371.32-212,126.19-66,499.09

Finding the Fourth Proportional to 141,371.32, 212,126.19 and 66,499.09

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Solution

The fourth proportional to 141,371.32, 212,126.19 and 66,499.09 is: 99,781.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,371.32 : 212,126.19 = 66,499.09 : x
  2. Step 2: Convert to fraction form
    141,371.32/212,126.19 = 66,499.09/x
  3. Step 3: Cross multiply
    141,371.32x = 212,126.19 × 66,499.09
  4. Step 4: Simplify right side
    141,371.32x = 14,106,198,600.17
  5. Step 5: Solve for x
    x = 14,106,198,600.17/141,371.32
  6. Step 6: Final answer
    x = 99,781.19

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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.