Home / 221,045.88-331,332.75-126,071.58

Finding the Fourth Proportional to 221,045.88, 331,332.75 and 126,071.58

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Solution

The fourth proportional to 221,045.88, 331,332.75 and 126,071.58 is: 188,972.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,045.88 : 331,332.75 = 126,071.58 : x
  2. Step 2: Convert to fraction form
    221,045.88/331,332.75 = 126,071.58/x
  3. Step 3: Cross multiply
    221,045.88x = 331,332.75 × 126,071.58
  4. Step 4: Simplify right side
    221,045.88x = 41,771,643,298.25
  5. Step 5: Solve for x
    x = 41,771,643,298.25/221,045.88
  6. Step 6: Final answer
    x = 188,972.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.