Home / 171,213.49-256,651.75-100,045.81

Finding the Fourth Proportional to 171,213.49, 256,651.75 and 100,045.81

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Solution

The fourth proportional to 171,213.49, 256,651.75 and 100,045.81 is: 149,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,213.49 : 256,651.75 = 100,045.81 : x
  2. Step 2: Convert to fraction form
    171,213.49/256,651.75 = 100,045.81/x
  3. Step 3: Cross multiply
    171,213.49x = 256,651.75 × 100,045.81
  4. Step 4: Simplify right side
    171,213.49x = 25,676,932,216.67
  5. Step 5: Solve for x
    x = 25,676,932,216.67/171,213.49
  6. Step 6: Final answer
    x = 149,970.26

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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.