Home / 220,837.32-304,756.92-125,345.61

Finding the Fourth Proportional to 220,837.32, 304,756.92 and 125,345.61

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Solution

The fourth proportional to 220,837.32, 304,756.92 and 125,345.61 is: 172,977.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,837.32 : 304,756.92 = 125,345.61 : x
  2. Step 2: Convert to fraction form
    220,837.32/304,756.92 = 125,345.61/x
  3. Step 3: Cross multiply
    220,837.32x = 304,756.92 × 125,345.61
  4. Step 4: Simplify right side
    220,837.32x = 38,199,942,039.12
  5. Step 5: Solve for x
    x = 38,199,942,039.12/220,837.32
  6. Step 6: Final answer
    x = 172,977.75

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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.