Home / 210,961.89-291,126.92-115,467.75

Finding the Fourth Proportional to 210,961.89, 291,126.92 and 115,467.75

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Solution

The fourth proportional to 210,961.89, 291,126.92 and 115,467.75 is: 159,345.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,961.89 : 291,126.92 = 115,467.75 : x
  2. Step 2: Convert to fraction form
    210,961.89/291,126.92 = 115,467.75/x
  3. Step 3: Cross multiply
    210,961.89x = 291,126.92 × 115,467.75
  4. Step 4: Simplify right side
    210,961.89x = 33,615,769,839.49
  5. Step 5: Solve for x
    x = 33,615,769,839.49/210,961.89
  6. Step 6: Final answer
    x = 159,345.23

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1.5x scale

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.