Home / 150,181.08-207,235.78-89,739.72

Finding the Fourth Proportional to 150,181.08, 207,235.78 and 89,739.72

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Solution

The fourth proportional to 150,181.08, 207,235.78 and 89,739.72 is: 123,832.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,181.08 : 207,235.78 = 89,739.72 : x
  2. Step 2: Convert to fraction form
    150,181.08/207,235.78 = 89,739.72/x
  3. Step 3: Cross multiply
    150,181.08x = 207,235.78 × 89,739.72
  4. Step 4: Simplify right side
    150,181.08x = 18,597,280,871.18
  5. Step 5: Solve for x
    x = 18,597,280,871.18/150,181.08
  6. Step 6: Final answer
    x = 123,832.38

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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.