Home / 127,891.08-191,859.30-39,142.62

Finding the Fourth Proportional to 127,891.08, 191,859.30 and 39,142.62

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Solution

The fourth proportional to 127,891.08, 191,859.30 and 39,142.62 is: 58,720.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,891.08 : 191,859.30 = 39,142.62 : x
  2. Step 2: Convert to fraction form
    127,891.08/191,859.30 = 39,142.62/x
  3. Step 3: Cross multiply
    127,891.08x = 191,859.30 × 39,142.62
  4. Step 4: Simplify right side
    127,891.08x = 7,509,875,673.37
  5. Step 5: Solve for x
    x = 7,509,875,673.37/127,891.08
  6. Step 6: Final answer
    x = 58,720.87

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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.