Home / 120,208.23-180,322.74-31,461.66

Finding the Fourth Proportional to 120,208.23, 180,322.74 and 31,461.66

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Solution

The fourth proportional to 120,208.23, 180,322.74 and 31,461.66 is: 47,195.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,208.23 : 180,322.74 = 31,461.66 : x
  2. Step 2: Convert to fraction form
    120,208.23/180,322.74 = 31,461.66/x
  3. Step 3: Cross multiply
    120,208.23x = 180,322.74 × 31,461.66
  4. Step 4: Simplify right side
    120,208.23x = 5,673,252,736.15
  5. Step 5: Solve for x
    x = 5,673,252,736.15/120,208.23
  6. Step 6: Final answer
    x = 47,195.21

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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.