Home / 221,051.52-305,050.32-125,539.20

Finding the Fourth Proportional to 221,051.52, 305,050.32 and 125,539.20

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Solution

The fourth proportional to 221,051.52, 305,050.32 and 125,539.20 is: 173,243.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,051.52 : 305,050.32 = 125,539.20 : x
  2. Step 2: Convert to fraction form
    221,051.52/305,050.32 = 125,539.20/x
  3. Step 3: Cross multiply
    221,051.52x = 305,050.32 × 125,539.20
  4. Step 4: Simplify right side
    221,051.52x = 38,295,773,132.54
  5. Step 5: Solve for x
    x = 38,295,773,132.54/221,051.52
  6. Step 6: Final answer
    x = 173,243.65

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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.