Home / 210,981.07-316,481.81-68,826.07

Finding the Fourth Proportional to 210,981.07, 316,481.81 and 68,826.07

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Solution

The fourth proportional to 210,981.07, 316,481.81 and 68,826.07 is: 103,242.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,981.07 : 316,481.81 = 68,826.07 : x
  2. Step 2: Convert to fraction form
    210,981.07/316,481.81 = 68,826.07/x
  3. Step 3: Cross multiply
    210,981.07x = 316,481.81 × 68,826.07
  4. Step 4: Simplify right side
    210,981.07x = 21,782,199,260.26
  5. Step 5: Solve for x
    x = 21,782,199,260.26/210,981.07
  6. Step 6: Final answer
    x = 103,242.43

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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.