Home / 163,404.30-225,478.12-90,806.83

Finding the Fourth Proportional to 163,404.30, 225,478.12 and 90,806.83

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Solution

The fourth proportional to 163,404.30, 225,478.12 and 90,806.83 is: 125,302.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,404.30 : 225,478.12 = 90,806.83 : x
  2. Step 2: Convert to fraction form
    163,404.30/225,478.12 = 90,806.83/x
  3. Step 3: Cross multiply
    163,404.30x = 225,478.12 × 90,806.83
  4. Step 4: Simplify right side
    163,404.30x = 20,474,953,311.56
  5. Step 5: Solve for x
    x = 20,474,953,311.56/163,404.30
  6. Step 6: Final answer
    x = 125,302.41

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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.