Home / 161,331.32-241,839.02-90,288.65

Finding the Fourth Proportional to 161,331.32, 241,839.02 and 90,288.65

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Solution

The fourth proportional to 161,331.32, 241,839.02 and 90,288.65 is: 135,344.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,331.32 : 241,839.02 = 90,288.65 : x
  2. Step 2: Convert to fraction form
    161,331.32/241,839.02 = 90,288.65/x
  3. Step 3: Cross multiply
    161,331.32x = 241,839.02 × 90,288.65
  4. Step 4: Simplify right side
    161,331.32x = 21,835,318,633.12
  5. Step 5: Solve for x
    x = 21,835,318,633.12/161,331.32
  6. Step 6: Final answer
    x = 135,344.57

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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.