Home / 223,171.68-307,979.10-122,569.68

Finding the Fourth Proportional to 223,171.68, 307,979.10 and 122,569.68

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Solution

The fourth proportional to 223,171.68, 307,979.10 and 122,569.68 is: 169,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,171.68 : 307,979.10 = 122,569.68 : x
  2. Step 2: Convert to fraction form
    223,171.68/307,979.10 = 122,569.68/x
  3. Step 3: Cross multiply
    223,171.68x = 307,979.10 × 122,569.68
  4. Step 4: Simplify right side
    223,171.68x = 37,748,899,733.69
  5. Step 5: Solve for x
    x = 37,748,899,733.69/223,171.68
  6. Step 6: Final answer
    x = 169,147.36

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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.