Home / 163,115.79-225,099.33-90,529.64

Finding the Fourth Proportional to 163,115.79, 225,099.33 and 90,529.64

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Solution

The fourth proportional to 163,115.79, 225,099.33 and 90,529.64 is: 124,930.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,115.79 : 225,099.33 = 90,529.64 : x
  2. Step 2: Convert to fraction form
    163,115.79/225,099.33 = 90,529.64/x
  3. Step 3: Cross multiply
    163,115.79x = 225,099.33 × 90,529.64
  4. Step 4: Simplify right side
    163,115.79x = 20,378,160,183.64
  5. Step 5: Solve for x
    x = 20,378,160,183.64/163,115.79
  6. Step 6: Final answer
    x = 124,930.64

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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.