Home / 199,927.32-275,873.04-128,404.14

Finding the Fourth Proportional to 199,927.32, 275,873.04 and 128,404.14

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Solution

The fourth proportional to 199,927.32, 275,873.04 and 128,404.14 is: 177,180.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,927.32 : 275,873.04 = 128,404.14 : x
  2. Step 2: Convert to fraction form
    199,927.32/275,873.04 = 128,404.14/x
  3. Step 3: Cross multiply
    199,927.32x = 275,873.04 × 128,404.14
  4. Step 4: Simplify right side
    199,927.32x = 35,423,240,450.39
  5. Step 5: Solve for x
    x = 35,423,240,450.39/199,927.32
  6. Step 6: Final answer
    x = 177,180.59

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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.