Home / 223,081.64-307,852.92-121,107.08

Finding the Fourth Proportional to 223,081.64, 307,852.92 and 121,107.08

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Solution

The fourth proportional to 223,081.64, 307,852.92 and 121,107.08 is: 167,127.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,081.64 : 307,852.92 = 121,107.08 : x
  2. Step 2: Convert to fraction form
    223,081.64/307,852.92 = 121,107.08/x
  3. Step 3: Cross multiply
    223,081.64x = 307,852.92 × 121,107.08
  4. Step 4: Simplify right side
    223,081.64x = 37,283,168,210.67
  5. Step 5: Solve for x
    x = 37,283,168,210.67/223,081.64
  6. Step 6: Final answer
    x = 167,127.91

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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.