Home / 171,436.40-257,195.66-71,541.02

Finding the Fourth Proportional to 171,436.40, 257,195.66 and 71,541.02

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Solution

The fourth proportional to 171,436.40, 257,195.66 and 71,541.02 is: 107,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,436.40 : 257,195.66 = 71,541.02 : x
  2. Step 2: Convert to fraction form
    171,436.40/257,195.66 = 71,541.02/x
  3. Step 3: Cross multiply
    171,436.40x = 257,195.66 × 71,541.02
  4. Step 4: Simplify right side
    171,436.40x = 18,400,039,855.97
  5. Step 5: Solve for x
    x = 18,400,039,855.97/171,436.40
  6. Step 6: Final answer
    x = 107,328.66

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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.