Home / 151,744.12-209,406.85-83,761.07

Finding the Fourth Proportional to 151,744.12, 209,406.85 and 83,761.07

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Solution

The fourth proportional to 151,744.12, 209,406.85 and 83,761.07 is: 115,590.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,744.12 : 209,406.85 = 83,761.07 : x
  2. Step 2: Convert to fraction form
    151,744.12/209,406.85 = 83,761.07/x
  3. Step 3: Cross multiply
    151,744.12x = 209,406.85 × 83,761.07
  4. Step 4: Simplify right side
    151,744.12x = 17,540,142,187.79
  5. Step 5: Solve for x
    x = 17,540,142,187.79/151,744.12
  6. Step 6: Final answer
    x = 115,590.26

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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.