Home / 120,166.03-180,259.33-31,419.39

Finding the Fourth Proportional to 120,166.03, 180,259.33 and 31,419.39

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Solution

The fourth proportional to 120,166.03, 180,259.33 and 31,419.39 is: 47,131.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,166.03 : 180,259.33 = 31,419.39 : x
  2. Step 2: Convert to fraction form
    120,166.03/180,259.33 = 31,419.39/x
  3. Step 3: Cross multiply
    120,166.03x = 180,259.33 × 31,419.39
  4. Step 4: Simplify right side
    120,166.03x = 5,663,638,268.96
  5. Step 5: Solve for x
    x = 5,663,638,268.96/120,166.03
  6. Step 6: Final answer
    x = 47,131.78

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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.