Home / 207,228.15-285,949.28-130,718.36

Finding the Fourth Proportional to 207,228.15, 285,949.28 and 130,718.36

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Solution

The fourth proportional to 207,228.15, 285,949.28 and 130,718.36 is: 180,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,228.15 : 285,949.28 = 130,718.36 : x
  2. Step 2: Convert to fraction form
    207,228.15/285,949.28 = 130,718.36/x
  3. Step 3: Cross multiply
    207,228.15x = 285,949.28 × 130,718.36
  4. Step 4: Simplify right side
    207,228.15x = 37,378,818,841.44
  5. Step 5: Solve for x
    x = 37,378,818,841.44/207,228.15
  6. Step 6: Final answer
    x = 180,375.20

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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.