Home / 211,478.72-291,896.16-126,662.08

Finding the Fourth Proportional to 211,478.72, 291,896.16 and 126,662.08

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Solution

The fourth proportional to 211,478.72, 291,896.16 and 126,662.08 is: 174,826.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,478.72 : 291,896.16 = 126,662.08 : x
  2. Step 2: Convert to fraction form
    211,478.72/291,896.16 = 126,662.08/x
  3. Step 3: Cross multiply
    211,478.72x = 291,896.16 × 126,662.08
  4. Step 4: Simplify right side
    211,478.72x = 36,972,174,769.61
  5. Step 5: Solve for x
    x = 36,972,174,769.61/211,478.72
  6. Step 6: Final answer
    x = 174,826.93

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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.