Home / 170,723.70-256,085.55-81,955.80

Finding the Fourth Proportional to 170,723.70, 256,085.55 and 81,955.80

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Solution

The fourth proportional to 170,723.70, 256,085.55 and 81,955.80 is: 122,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,723.70 : 256,085.55 = 81,955.80 : x
  2. Step 2: Convert to fraction form
    170,723.70/256,085.55 = 81,955.80/x
  3. Step 3: Cross multiply
    170,723.70x = 256,085.55 × 81,955.80
  4. Step 4: Simplify right side
    170,723.70x = 20,987,696,118.69
  5. Step 5: Solve for x
    x = 20,987,696,118.69/170,723.70
  6. Step 6: Final answer
    x = 122,933.70

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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.