Home / 158,466.72-218,685.75-86,845.17

Finding the Fourth Proportional to 158,466.72, 218,685.75 and 86,845.17

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Solution

The fourth proportional to 158,466.72, 218,685.75 and 86,845.17 is: 119,847.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,466.72 : 218,685.75 = 86,845.17 : x
  2. Step 2: Convert to fraction form
    158,466.72/218,685.75 = 86,845.17/x
  3. Step 3: Cross multiply
    158,466.72x = 218,685.75 × 86,845.17
  4. Step 4: Simplify right side
    158,466.72x = 18,991,801,135.33
  5. Step 5: Solve for x
    x = 18,991,801,135.33/158,466.72
  6. Step 6: Final answer
    x = 119,847.25

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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.