Home / 120,073.60-180,114.05-41,186.69

Finding the Fourth Proportional to 120,073.60, 180,114.05 and 41,186.69

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Solution

The fourth proportional to 120,073.60, 180,114.05 and 41,186.69 is: 61,781.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,073.60 : 180,114.05 = 41,186.69 : x
  2. Step 2: Convert to fraction form
    120,073.60/180,114.05 = 41,186.69/x
  3. Step 3: Cross multiply
    120,073.60x = 180,114.05 × 41,186.69
  4. Step 4: Simplify right side
    120,073.60x = 7,418,301,541.99
  5. Step 5: Solve for x
    x = 7,418,301,541.99/120,073.60
  6. Step 6: Final answer
    x = 61,781.29

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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.