Home / 144,786.80-217,254.51-68,971.20

Finding the Fourth Proportional to 144,786.80, 217,254.51 and 68,971.20

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Solution

The fourth proportional to 144,786.80, 217,254.51 and 68,971.20 is: 103,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,786.80 : 217,254.51 = 68,971.20 : x
  2. Step 2: Convert to fraction form
    144,786.80/217,254.51 = 68,971.20/x
  3. Step 3: Cross multiply
    144,786.80x = 217,254.51 × 68,971.20
  4. Step 4: Simplify right side
    144,786.80x = 14,984,304,260.11
  5. Step 5: Solve for x
    x = 14,984,304,260.11/144,786.80
  6. Step 6: Final answer
    x = 103,492.20

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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.