Home / 171,621.06-236,788.11-99,018.21

Finding the Fourth Proportional to 171,621.06, 236,788.11 and 99,018.21

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Solution

The fourth proportional to 171,621.06, 236,788.11 and 99,018.21 is: 136,616.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,621.06 : 236,788.11 = 99,018.21 : x
  2. Step 2: Convert to fraction form
    171,621.06/236,788.11 = 99,018.21/x
  3. Step 3: Cross multiply
    171,621.06x = 236,788.11 × 99,018.21
  4. Step 4: Simplify right side
    171,621.06x = 23,446,334,801.48
  5. Step 5: Solve for x
    x = 23,446,334,801.48/171,621.06
  6. Step 6: Final answer
    x = 136,616.89

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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.