Home / 210,236.47-315,385.91-68,034.08

Finding the Fourth Proportional to 210,236.47, 315,385.91 and 68,034.08

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Solution

The fourth proportional to 210,236.47, 315,385.91 and 68,034.08 is: 102,061.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,236.47 : 315,385.91 = 68,034.08 : x
  2. Step 2: Convert to fraction form
    210,236.47/315,385.91 = 68,034.08/x
  3. Step 3: Cross multiply
    210,236.47x = 315,385.91 × 68,034.08
  4. Step 4: Simplify right side
    210,236.47x = 21,456,990,231.81
  5. Step 5: Solve for x
    x = 21,456,990,231.81/210,236.47
  6. Step 6: Final answer
    x = 102,061.22

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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.