Home / 171,639.90-236,871.18-107,147.34

Finding the Fourth Proportional to 171,639.90, 236,871.18 and 107,147.34

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Solution

The fourth proportional to 171,639.90, 236,871.18 and 107,147.34 is: 147,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,639.90 : 236,871.18 = 107,147.34 : x
  2. Step 2: Convert to fraction form
    171,639.90/236,871.18 = 107,147.34/x
  3. Step 3: Cross multiply
    171,639.90x = 236,871.18 × 107,147.34
  4. Step 4: Simplify right side
    171,639.90x = 25,380,116,859.66
  5. Step 5: Solve for x
    x = 25,380,116,859.66/171,639.90
  6. Step 6: Final answer
    x = 147,868.40

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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.