Home / 163,632.78-225,830.34-100,012.95

Finding the Fourth Proportional to 163,632.78, 225,830.34 and 100,012.95

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Solution

The fourth proportional to 163,632.78, 225,830.34 and 100,012.95 is: 138,028.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,632.78 : 225,830.34 = 100,012.95 : x
  2. Step 2: Convert to fraction form
    163,632.78/225,830.34 = 100,012.95/x
  3. Step 3: Cross multiply
    163,632.78x = 225,830.34 × 100,012.95
  4. Step 4: Simplify right side
    163,632.78x = 22,585,958,502.90
  5. Step 5: Solve for x
    x = 22,585,958,502.90/163,632.78
  6. Step 6: Final answer
    x = 138,028.32

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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.