Home / 120,989.76-181,507.53-39,941.36

Finding the Fourth Proportional to 120,989.76, 181,507.53 and 39,941.36

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Solution

The fourth proportional to 120,989.76, 181,507.53 and 39,941.36 is: 59,919.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,989.76 : 181,507.53 = 39,941.36 : x
  2. Step 2: Convert to fraction form
    120,989.76/181,507.53 = 39,941.36/x
  3. Step 3: Cross multiply
    120,989.76x = 181,507.53 × 39,941.36
  4. Step 4: Simplify right side
    120,989.76x = 7,249,656,690.90
  5. Step 5: Solve for x
    x = 7,249,656,690.90/120,989.76
  6. Step 6: Final answer
    x = 59,919.59

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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.