Home / 171,064.27-256,437.63-81,149.18

Finding the Fourth Proportional to 171,064.27, 256,437.63 and 81,149.18

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Solution

The fourth proportional to 171,064.27, 256,437.63 and 81,149.18 is: 121,648.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,064.27 : 256,437.63 = 81,149.18 : x
  2. Step 2: Convert to fraction form
    171,064.27/256,437.63 = 81,149.18/x
  3. Step 3: Cross multiply
    171,064.27x = 256,437.63 × 81,149.18
  4. Step 4: Simplify right side
    171,064.27x = 20,809,702,113.46
  5. Step 5: Solve for x
    x = 20,809,702,113.46/171,064.27
  6. Step 6: Final answer
    x = 121,648.44

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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.