Home / 141,868.32-212,802-42,029.28

Finding the Fourth Proportional to 141,868.32, 212,802 and 42,029.28

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Solution

The fourth proportional to 141,868.32, 212,802 and 42,029.28 is: 63,043.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,868.32 : 212,802 = 42,029.28 : x
  2. Step 2: Convert to fraction form
    141,868.32/212,802 = 42,029.28/x
  3. Step 3: Cross multiply
    141,868.32x = 212,802 × 42,029.28
  4. Step 4: Simplify right side
    141,868.32x = 8,943,914,842.56
  5. Step 5: Solve for x
    x = 8,943,914,842.56/141,868.32
  6. Step 6: Final answer
    x = 63,043.78

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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.