Home / 171,228.50-256,903.64-76,450.13

Finding the Fourth Proportional to 171,228.50, 256,903.64 and 76,450.13

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Solution

The fourth proportional to 171,228.50, 256,903.64 and 76,450.13 is: 114,702.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,228.50 : 256,903.64 = 76,450.13 : x
  2. Step 2: Convert to fraction form
    171,228.50/256,903.64 = 76,450.13/x
  3. Step 3: Cross multiply
    171,228.50x = 256,903.64 × 76,450.13
  4. Step 4: Simplify right side
    171,228.50x = 19,640,315,008.70
  5. Step 5: Solve for x
    x = 19,640,315,008.70/171,228.50
  6. Step 6: Final answer
    x = 114,702.37

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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.