Home / 161,278.90-222,570.59-88,687.34

Finding the Fourth Proportional to 161,278.90, 222,570.59 and 88,687.34

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Solution

The fourth proportional to 161,278.90, 222,570.59 and 88,687.34 is: 122,391.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,278.90 : 222,570.59 = 88,687.34 : x
  2. Step 2: Convert to fraction form
    161,278.90/222,570.59 = 88,687.34/x
  3. Step 3: Cross multiply
    161,278.90x = 222,570.59 × 88,687.34
  4. Step 4: Simplify right side
    161,278.90x = 19,739,192,867.68
  5. Step 5: Solve for x
    x = 19,739,192,867.68/161,278.90
  6. Step 6: Final answer
    x = 122,391.67

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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.