Home / 169,905.34-234,123.85-131,431.21

Finding the Fourth Proportional to 169,905.34, 234,123.85 and 131,431.21

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Solution

The fourth proportional to 169,905.34, 234,123.85 and 131,431.21 is: 181,107.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,905.34 : 234,123.85 = 131,431.21 : x
  2. Step 2: Convert to fraction form
    169,905.34/234,123.85 = 131,431.21/x
  3. Step 3: Cross multiply
    169,905.34x = 234,123.85 × 131,431.21
  4. Step 4: Simplify right side
    169,905.34x = 30,771,180,895.36
  5. Step 5: Solve for x
    x = 30,771,180,895.36/169,905.34
  6. Step 6: Final answer
    x = 181,107.79

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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.