Home / 212,072.67-292,657.91-115,274.43

Finding the Fourth Proportional to 212,072.67, 292,657.91 and 115,274.43

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Solution

The fourth proportional to 212,072.67, 292,657.91 and 115,274.43 is: 159,077.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,072.67 : 292,657.91 = 115,274.43 : x
  2. Step 2: Convert to fraction form
    212,072.67/292,657.91 = 115,274.43/x
  3. Step 3: Cross multiply
    212,072.67x = 292,657.91 × 115,274.43
  4. Step 4: Simplify right side
    212,072.67x = 33,735,972,296.95
  5. Step 5: Solve for x
    x = 33,735,972,296.95/212,072.67
  6. Step 6: Final answer
    x = 159,077.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.