Home / 170,385.50-255,611.06-76,891.26

Finding the Fourth Proportional to 170,385.50, 255,611.06 and 76,891.26

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Solution

The fourth proportional to 170,385.50, 255,611.06 and 76,891.26 is: 115,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,385.50 : 255,611.06 = 76,891.26 : x
  2. Step 2: Convert to fraction form
    170,385.50/255,611.06 = 76,891.26/x
  3. Step 3: Cross multiply
    170,385.50x = 255,611.06 × 76,891.26
  4. Step 4: Simplify right side
    170,385.50x = 19,654,256,473.34
  5. Step 5: Solve for x
    x = 19,654,256,473.34/170,385.50
  6. Step 6: Final answer
    x = 115,351.70

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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.