Home / 151,714.83-209,323.30-91,255.21

Finding the Fourth Proportional to 151,714.83, 209,323.30 and 91,255.21

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Solution

The fourth proportional to 151,714.83, 209,323.30 and 91,255.21 is: 125,906.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,714.83 : 209,323.30 = 91,255.21 : x
  2. Step 2: Convert to fraction form
    151,714.83/209,323.30 = 91,255.21/x
  3. Step 3: Cross multiply
    151,714.83x = 209,323.30 × 91,255.21
  4. Step 4: Simplify right side
    151,714.83x = 19,101,841,699.39
  5. Step 5: Solve for x
    x = 19,101,841,699.39/151,714.83
  6. Step 6: Final answer
    x = 125,906.23

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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.