Home / 118,331.15-177,365.24-90,158.32

Finding the Fourth Proportional to 118,331.15, 177,365.24 and 90,158.32

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Solution

The fourth proportional to 118,331.15, 177,365.24 and 90,158.32 is: 135,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,331.15 : 177,365.24 = 90,158.32 : x
  2. Step 2: Convert to fraction form
    118,331.15/177,365.24 = 90,158.32/x
  3. Step 3: Cross multiply
    118,331.15x = 177,365.24 × 90,158.32
  4. Step 4: Simplify right side
    118,331.15x = 15,990,951,846.78
  5. Step 5: Solve for x
    x = 15,990,951,846.78/118,331.15
  6. Step 6: Final answer
    x = 135,137.30

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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.