Home / 120,920.12-181,380.60-42,035

Finding the Fourth Proportional to 120,920.12, 181,380.60 and 42,035

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Solution

The fourth proportional to 120,920.12, 181,380.60 and 42,035 is: 63,052.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,920.12 : 181,380.60 = 42,035 : x
  2. Step 2: Convert to fraction form
    120,920.12/181,380.60 = 42,035/x
  3. Step 3: Cross multiply
    120,920.12x = 181,380.60 × 42,035
  4. Step 4: Simplify right side
    120,920.12x = 7,624,333,521
  5. Step 5: Solve for x
    x = 7,624,333,521/120,920.12
  6. Step 6: Final answer
    x = 63,052.65

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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.