Home / 120,780.99-181,171.62-45,883.53

Finding the Fourth Proportional to 120,780.99, 181,171.62 and 45,883.53

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Solution

The fourth proportional to 120,780.99, 181,171.62 and 45,883.53 is: 68,825.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,780.99 : 181,171.62 = 45,883.53 : x
  2. Step 2: Convert to fraction form
    120,780.99/181,171.62 = 45,883.53/x
  3. Step 3: Cross multiply
    120,780.99x = 181,171.62 × 45,883.53
  4. Step 4: Simplify right side
    120,780.99x = 8,312,793,461.42
  5. Step 5: Solve for x
    x = 8,312,793,461.42/120,780.99
  6. Step 6: Final answer
    x = 68,825.35

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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.