Home / 163,746.31-225,969.85-91,147.63

Finding the Fourth Proportional to 163,746.31, 225,969.85 and 91,147.63

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Solution

The fourth proportional to 163,746.31, 225,969.85 and 91,147.63 is: 125,783.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,746.31 : 225,969.85 = 91,147.63 : x
  2. Step 2: Convert to fraction form
    163,746.31/225,969.85 = 91,147.63/x
  3. Step 3: Cross multiply
    163,746.31x = 225,969.85 × 91,147.63
  4. Step 4: Simplify right side
    163,746.31x = 20,596,615,714.03
  5. Step 5: Solve for x
    x = 20,596,615,714.03/163,746.31
  6. Step 6: Final answer
    x = 125,783.69

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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.