Home / 223,581.36-308,535.84-122,979.36

Finding the Fourth Proportional to 223,581.36, 308,535.84 and 122,979.36

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Solution

The fourth proportional to 223,581.36, 308,535.84 and 122,979.36 is: 169,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,581.36 : 308,535.84 = 122,979.36 : x
  2. Step 2: Convert to fraction form
    223,581.36/308,535.84 = 122,979.36/x
  3. Step 3: Cross multiply
    223,581.36x = 308,535.84 × 122,979.36
  4. Step 4: Simplify right side
    223,581.36x = 37,943,540,140.26
  5. Step 5: Solve for x
    x = 37,943,540,140.26/223,581.36
  6. Step 6: Final answer
    x = 169,707.98

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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.