Home / 171,490.32-256,774.68-139,770.36

Finding the Fourth Proportional to 171,490.32, 256,774.68 and 139,770.36

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Solution

The fourth proportional to 171,490.32, 256,774.68 and 139,770.36 is: 209,279.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,490.32 : 256,774.68 = 139,770.36 : x
  2. Step 2: Convert to fraction form
    171,490.32/256,774.68 = 139,770.36/x
  3. Step 3: Cross multiply
    171,490.32x = 256,774.68 × 139,770.36
  4. Step 4: Simplify right side
    171,490.32x = 35,889,489,462.48
  5. Step 5: Solve for x
    x = 35,889,489,462.48/171,490.32
  6. Step 6: Final answer
    x = 209,279.97

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1.5x scale

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.