Home / 231,967.31-320,137.29-130,009.95

Finding the Fourth Proportional to 231,967.31, 320,137.29 and 130,009.95

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Solution

The fourth proportional to 231,967.31, 320,137.29 and 130,009.95 is: 179,426.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,967.31 : 320,137.29 = 130,009.95 : x
  2. Step 2: Convert to fraction form
    231,967.31/320,137.29 = 130,009.95/x
  3. Step 3: Cross multiply
    231,967.31x = 320,137.29 × 130,009.95
  4. Step 4: Simplify right side
    231,967.31x = 41,621,033,066.04
  5. Step 5: Solve for x
    x = 41,621,033,066.04/231,967.31
  6. Step 6: Final answer
    x = 179,426.29

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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.