Home / 163,616.80-225,934.32-103,295.20

Finding the Fourth Proportional to 163,616.80, 225,934.32 and 103,295.20

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Solution

The fourth proportional to 163,616.80, 225,934.32 and 103,295.20 is: 142,637.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,616.80 : 225,934.32 = 103,295.20 : x
  2. Step 2: Convert to fraction form
    163,616.80/225,934.32 = 103,295.20/x
  3. Step 3: Cross multiply
    163,616.80x = 225,934.32 × 103,295.20
  4. Step 4: Simplify right side
    163,616.80x = 23,337,930,771.26
  5. Step 5: Solve for x
    x = 23,337,930,771.26/163,616.80
  6. Step 6: Final answer
    x = 142,637.74

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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.