Home / 146,743.30-202,411.65-100,780.76

Finding the Fourth Proportional to 146,743.30, 202,411.65 and 100,780.76

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Solution

The fourth proportional to 146,743.30, 202,411.65 and 100,780.76 is: 139,012.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,743.30 : 202,411.65 = 100,780.76 : x
  2. Step 2: Convert to fraction form
    146,743.30/202,411.65 = 100,780.76/x
  3. Step 3: Cross multiply
    146,743.30x = 202,411.65 × 100,780.76
  4. Step 4: Simplify right side
    146,743.30x = 20,399,198,907.80
  5. Step 5: Solve for x
    x = 20,399,198,907.80/146,743.30
  6. Step 6: Final answer
    x = 139,012.82

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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.