Home / 210,945.52-291,103.08-115,451.98

Finding the Fourth Proportional to 210,945.52, 291,103.08 and 115,451.98

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Solution

The fourth proportional to 210,945.52, 291,103.08 and 115,451.98 is: 159,322.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,945.52 : 291,103.08 = 115,451.98 : x
  2. Step 2: Convert to fraction form
    210,945.52/291,103.08 = 115,451.98/x
  3. Step 3: Cross multiply
    210,945.52x = 291,103.08 × 115,451.98
  4. Step 4: Simplify right side
    210,945.52x = 33,608,426,970.10
  5. Step 5: Solve for x
    x = 33,608,426,970.10/210,945.52
  6. Step 6: Final answer
    x = 159,322.78

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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.