Home / 163,432.25-225,542.29-90,836.59

Finding the Fourth Proportional to 163,432.25, 225,542.29 and 90,836.59

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Solution

The fourth proportional to 163,432.25, 225,542.29 and 90,836.59 is: 125,357.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,432.25 : 225,542.29 = 90,836.59 : x
  2. Step 2: Convert to fraction form
    163,432.25/225,542.29 = 90,836.59/x
  3. Step 3: Cross multiply
    163,432.25x = 225,542.29 × 90,836.59
  4. Step 4: Simplify right side
    163,432.25x = 20,487,493,315.34
  5. Step 5: Solve for x
    x = 20,487,493,315.34/163,432.25
  6. Step 6: Final answer
    x = 125,357.71

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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.