Home / 233,112.78-321,695.16-131,138.31

Finding the Fourth Proportional to 233,112.78, 321,695.16 and 131,138.31

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Solution

The fourth proportional to 233,112.78, 321,695.16 and 131,138.31 is: 180,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,112.78 : 321,695.16 = 131,138.31 : x
  2. Step 2: Convert to fraction form
    233,112.78/321,695.16 = 131,138.31/x
  3. Step 3: Cross multiply
    233,112.78x = 321,695.16 × 131,138.31
  4. Step 4: Simplify right side
    233,112.78x = 42,186,559,617.58
  5. Step 5: Solve for x
    x = 42,186,559,617.58/233,112.78
  6. Step 6: Final answer
    x = 180,970.60

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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.