Home / 170,920.10-256,449.13-76,085.48

Finding the Fourth Proportional to 170,920.10, 256,449.13 and 76,085.48

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Solution

The fourth proportional to 170,920.10, 256,449.13 and 76,085.48 is: 114,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,920.10 : 256,449.13 = 76,085.48 : x
  2. Step 2: Convert to fraction form
    170,920.10/256,449.13 = 76,085.48/x
  3. Step 3: Cross multiply
    170,920.10x = 256,449.13 × 76,085.48
  4. Step 4: Simplify right side
    170,920.10x = 19,512,055,602.54
  5. Step 5: Solve for x
    x = 19,512,055,602.54/170,920.10
  6. Step 6: Final answer
    x = 114,158.93

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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.