Home / 210,647.92-290,623.16-119,939.72

Finding the Fourth Proportional to 210,647.92, 290,623.16 and 119,939.72

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Solution

The fourth proportional to 210,647.92, 290,623.16 and 119,939.72 is: 165,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,647.92 : 290,623.16 = 119,939.72 : x
  2. Step 2: Convert to fraction form
    210,647.92/290,623.16 = 119,939.72/x
  3. Step 3: Cross multiply
    210,647.92x = 290,623.16 × 119,939.72
  4. Step 4: Simplify right side
    210,647.92x = 34,857,260,435.92
  5. Step 5: Solve for x
    x = 34,857,260,435.92/210,647.92
  6. Step 6: Final answer
    x = 165,476.40

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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.