Home / 161,123.40-241,612.20-72,331.20

Finding the Fourth Proportional to 161,123.40, 241,612.20 and 72,331.20

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Solution

The fourth proportional to 161,123.40, 241,612.20 and 72,331.20 is: 108,464.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,123.40 : 241,612.20 = 72,331.20 : x
  2. Step 2: Convert to fraction form
    161,123.40/241,612.20 = 72,331.20/x
  3. Step 3: Cross multiply
    161,123.40x = 241,612.20 × 72,331.20
  4. Step 4: Simplify right side
    161,123.40x = 17,476,100,360.64
  5. Step 5: Solve for x
    x = 17,476,100,360.64/161,123.40
  6. Step 6: Final answer
    x = 108,464.07

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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.