Home / 150,850.72-208,158.96-90,405.28

Finding the Fourth Proportional to 150,850.72, 208,158.96 and 90,405.28

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Solution

The fourth proportional to 150,850.72, 208,158.96 and 90,405.28 is: 124,750.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,850.72 : 208,158.96 = 90,405.28 : x
  2. Step 2: Convert to fraction form
    150,850.72/208,158.96 = 90,405.28/x
  3. Step 3: Cross multiply
    150,850.72x = 208,158.96 × 90,405.28
  4. Step 4: Simplify right side
    150,850.72x = 18,818,669,063.31
  5. Step 5: Solve for x
    x = 18,818,669,063.31/150,850.72
  6. Step 6: Final answer
    x = 124,750.28

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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.