Home / 161,187.35-222,369.57-100,652.90

Finding the Fourth Proportional to 161,187.35, 222,369.57 and 100,652.90

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Solution

The fourth proportional to 161,187.35, 222,369.57 and 100,652.90 is: 138,857.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,187.35 : 222,369.57 = 100,652.90 : x
  2. Step 2: Convert to fraction form
    161,187.35/222,369.57 = 100,652.90/x
  3. Step 3: Cross multiply
    161,187.35x = 222,369.57 × 100,652.90
  4. Step 4: Simplify right side
    161,187.35x = 22,382,142,432.02
  5. Step 5: Solve for x
    x = 22,382,142,432.02/161,187.35
  6. Step 6: Final answer
    x = 138,857.93

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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.