Home / 212,112.47-292,716.18-115,317.27

Finding the Fourth Proportional to 212,112.47, 292,716.18 and 115,317.27

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Solution

The fourth proportional to 212,112.47, 292,716.18 and 115,317.27 is: 159,138.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,112.47 : 292,716.18 = 115,317.27 : x
  2. Step 2: Convert to fraction form
    212,112.47/292,716.18 = 115,317.27/x
  3. Step 3: Cross multiply
    212,112.47x = 292,716.18 × 115,317.27
  4. Step 4: Simplify right side
    212,112.47x = 33,755,230,762.43
  5. Step 5: Solve for x
    x = 33,755,230,762.43/212,112.47
  6. Step 6: Final answer
    x = 159,138.36

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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.