Home / 120,541.74-180,824.76-31,801.38

Finding the Fourth Proportional to 120,541.74, 180,824.76 and 31,801.38

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Solution

The fourth proportional to 120,541.74, 180,824.76 and 31,801.38 is: 47,705.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,541.74 : 180,824.76 = 31,801.38 : x
  2. Step 2: Convert to fraction form
    120,541.74/180,824.76 = 31,801.38/x
  3. Step 3: Cross multiply
    120,541.74x = 180,824.76 × 31,801.38
  4. Step 4: Simplify right side
    120,541.74x = 5,750,476,906.17
  5. Step 5: Solve for x
    x = 5,750,476,906.17/120,541.74
  6. Step 6: Final answer
    x = 47,705.28

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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.