Home / 122,108.46-168,514.91-71,112.96

Finding the Fourth Proportional to 122,108.46, 168,514.91 and 71,112.96

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Solution

The fourth proportional to 122,108.46, 168,514.91 and 71,112.96 is: 98,138.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,108.46 : 168,514.91 = 71,112.96 : x
  2. Step 2: Convert to fraction form
    122,108.46/168,514.91 = 71,112.96/x
  3. Step 3: Cross multiply
    122,108.46x = 168,514.91 × 71,112.96
  4. Step 4: Simplify right side
    122,108.46x = 11,983,594,054.23
  5. Step 5: Solve for x
    x = 11,983,594,054.23/122,108.46
  6. Step 6: Final answer
    x = 98,138.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.