Home / 210,982.88-316,366.65-68,736.69

Finding the Fourth Proportional to 210,982.88, 316,366.65 and 68,736.69

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Solution

The fourth proportional to 210,982.88, 316,366.65 and 68,736.69 is: 103,069.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,982.88 : 316,366.65 = 68,736.69 : x
  2. Step 2: Convert to fraction form
    210,982.88/316,366.65 = 68,736.69/x
  3. Step 3: Cross multiply
    210,982.88x = 316,366.65 × 68,736.69
  4. Step 4: Simplify right side
    210,982.88x = 21,745,996,347.39
  5. Step 5: Solve for x
    x = 21,745,996,347.39/210,982.88
  6. Step 6: Final answer
    x = 103,069.96

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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.