Home / 171,436.66-257,196.04-71,541.28

Finding the Fourth Proportional to 171,436.66, 257,196.04 and 71,541.28

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Solution

The fourth proportional to 171,436.66, 257,196.04 and 71,541.28 is: 107,329.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,436.66 : 257,196.04 = 71,541.28 : x
  2. Step 2: Convert to fraction form
    171,436.66/257,196.04 = 71,541.28/x
  3. Step 3: Cross multiply
    171,436.66x = 257,196.04 × 71,541.28
  4. Step 4: Simplify right side
    171,436.66x = 18,400,133,912.53
  5. Step 5: Solve for x
    x = 18,400,133,912.53/171,436.66
  6. Step 6: Final answer
    x = 107,329.05

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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.