Home / 440,963.36-661,556-125,420.32

Finding the Fourth Proportional to 440,963.36, 661,556 and 125,420.32

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Solution

The fourth proportional to 440,963.36, 661,556 and 125,420.32 is: 188,162.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,963.36 : 661,556 = 125,420.32 : x
  2. Step 2: Convert to fraction form
    440,963.36/661,556 = 125,420.32/x
  3. Step 3: Cross multiply
    440,963.36x = 661,556 × 125,420.32
  4. Step 4: Simplify right side
    440,963.36x = 82,972,565,217.92
  5. Step 5: Solve for x
    x = 82,972,565,217.92/440,963.36
  6. Step 6: Final answer
    x = 188,162.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.