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Finding the Fourth Proportional to 163,720.80, 245,437.20 and 110,959.20

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Solution

The fourth proportional to 163,720.80, 245,437.20 and 110,959.20 is: 166,341.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,720.80 : 245,437.20 = 110,959.20 : x
  2. Step 2: Convert to fraction form
    163,720.80/245,437.20 = 110,959.20/x
  3. Step 3: Cross multiply
    163,720.80x = 245,437.20 × 110,959.20
  4. Step 4: Simplify right side
    163,720.80x = 27,233,515,362.24
  5. Step 5: Solve for x
    x = 27,233,515,362.24/163,720.80
  6. Step 6: Final answer
    x = 166,341.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.