Home / 221,051.66-331,341.39-126,077.31

Finding the Fourth Proportional to 221,051.66, 331,341.39 and 126,077.31

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Solution

The fourth proportional to 221,051.66, 331,341.39 and 126,077.31 is: 188,981.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,051.66 : 331,341.39 = 126,077.31 : x
  2. Step 2: Convert to fraction form
    221,051.66/331,341.39 = 126,077.31/x
  3. Step 3: Cross multiply
    221,051.66x = 331,341.39 × 126,077.31
  4. Step 4: Simplify right side
    221,051.66x = 41,774,631,142.86
  5. Step 5: Solve for x
    x = 41,774,631,142.86/221,051.66
  6. Step 6: Final answer
    x = 188,981.31

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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.