Home / 163,531.20-225,712.80-99,922.56

Finding the Fourth Proportional to 163,531.20, 225,712.80 and 99,922.56

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Solution

The fourth proportional to 163,531.20, 225,712.80 and 99,922.56 is: 137,917.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,531.20 : 225,712.80 = 99,922.56 : x
  2. Step 2: Convert to fraction form
    163,531.20/225,712.80 = 99,922.56/x
  3. Step 3: Cross multiply
    163,531.20x = 225,712.80 × 99,922.56
  4. Step 4: Simplify right side
    163,531.20x = 22,553,800,800.77
  5. Step 5: Solve for x
    x = 22,553,800,800.77/163,531.20
  6. Step 6: Final answer
    x = 137,917.42

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1.5x scale

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.