Home / 170,968.80-235,854-120,557.28

Finding the Fourth Proportional to 170,968.80, 235,854 and 120,557.28

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Solution

The fourth proportional to 170,968.80, 235,854 and 120,557.28 is: 166,310.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,968.80 : 235,854 = 120,557.28 : x
  2. Step 2: Convert to fraction form
    170,968.80/235,854 = 120,557.28/x
  3. Step 3: Cross multiply
    170,968.80x = 235,854 × 120,557.28
  4. Step 4: Simplify right side
    170,968.80x = 28,433,916,717.12
  5. Step 5: Solve for x
    x = 28,433,916,717.12/170,968.80
  6. Step 6: Final answer
    x = 166,310.56

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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.