Home / 90,157.05-135,301.95-42,772.23

Finding the Fourth Proportional to 90,157.05, 135,301.95 and 42,772.23

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Solution

The fourth proportional to 90,157.05, 135,301.95 and 42,772.23 is: 64,189.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,157.05 : 135,301.95 = 42,772.23 : x
  2. Step 2: Convert to fraction form
    90,157.05/135,301.95 = 42,772.23/x
  3. Step 3: Cross multiply
    90,157.05x = 135,301.95 × 42,772.23
  4. Step 4: Simplify right side
    90,157.05x = 5,787,166,124.85
  5. Step 5: Solve for x
    x = 5,787,166,124.85/90,157.05
  6. Step 6: Final answer
    x = 64,189.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.