Home / 210,823.17-290,951.76-120,181.29

Finding the Fourth Proportional to 210,823.17, 290,951.76 and 120,181.29

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Solution

The fourth proportional to 210,823.17, 290,951.76 and 120,181.29 is: 165,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,823.17 : 290,951.76 = 120,181.29 : x
  2. Step 2: Convert to fraction form
    210,823.17/290,951.76 = 120,181.29/x
  3. Step 3: Cross multiply
    210,823.17x = 290,951.76 × 120,181.29
  4. Step 4: Simplify right side
    210,823.17x = 34,966,957,844.57
  5. Step 5: Solve for x
    x = 34,966,957,844.57/210,823.17
  6. Step 6: Final answer
    x = 165,859.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.