Home / 172,714.16-238,346.08-100,131.20

Finding the Fourth Proportional to 172,714.16, 238,346.08 and 100,131.20

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Solution

The fourth proportional to 172,714.16, 238,346.08 and 100,131.20 is: 138,181.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,714.16 : 238,346.08 = 100,131.20 : x
  2. Step 2: Convert to fraction form
    172,714.16/238,346.08 = 100,131.20/x
  3. Step 3: Cross multiply
    172,714.16x = 238,346.08 × 100,131.20
  4. Step 4: Simplify right side
    172,714.16x = 23,865,879,005.70
  5. Step 5: Solve for x
    x = 23,865,879,005.70/172,714.16
  6. Step 6: Final answer
    x = 138,181.37

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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.