Home / 127,899.30-191,904.18-68,665.80

Finding the Fourth Proportional to 127,899.30, 191,904.18 and 68,665.80

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Solution

The fourth proportional to 127,899.30, 191,904.18 and 68,665.80 is: 103,028.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,899.30 : 191,904.18 = 68,665.80 : x
  2. Step 2: Convert to fraction form
    127,899.30/191,904.18 = 68,665.80/x
  3. Step 3: Cross multiply
    127,899.30x = 191,904.18 × 68,665.80
  4. Step 4: Simplify right side
    127,899.30x = 13,177,254,043.04
  5. Step 5: Solve for x
    x = 13,177,254,043.04/127,899.30
  6. Step 6: Final answer
    x = 103,028.35

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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.