Home / 120,435.05-180,654.10-57,261.13

Finding the Fourth Proportional to 120,435.05, 180,654.10 and 57,261.13

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Solution

The fourth proportional to 120,435.05, 180,654.10 and 57,261.13 is: 85,892.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,435.05 : 180,654.10 = 57,261.13 : x
  2. Step 2: Convert to fraction form
    120,435.05/180,654.10 = 57,261.13/x
  3. Step 3: Cross multiply
    120,435.05x = 180,654.10 × 57,261.13
  4. Step 4: Simplify right side
    120,435.05x = 10,344,457,310.34
  5. Step 5: Solve for x
    x = 10,344,457,310.34/120,435.05
  6. Step 6: Final answer
    x = 85,892.41

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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.