Home / 163,209.18-225,223.29-91,590.33

Finding the Fourth Proportional to 163,209.18, 225,223.29 and 91,590.33

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Solution

The fourth proportional to 163,209.18, 225,223.29 and 91,590.33 is: 126,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,209.18 : 225,223.29 = 91,590.33 : x
  2. Step 2: Convert to fraction form
    163,209.18/225,223.29 = 91,590.33/x
  3. Step 3: Cross multiply
    163,209.18x = 225,223.29 × 91,590.33
  4. Step 4: Simplify right side
    163,209.18x = 20,628,275,454.79
  5. Step 5: Solve for x
    x = 20,628,275,454.79/163,209.18
  6. Step 6: Final answer
    x = 126,391.64

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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.