Home / 158,285.72-218,427.54-86,664.44

Finding the Fourth Proportional to 158,285.72, 218,427.54 and 86,664.44

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Solution

The fourth proportional to 158,285.72, 218,427.54 and 86,664.44 is: 119,593.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,285.72 : 218,427.54 = 86,664.44 : x
  2. Step 2: Convert to fraction form
    158,285.72/218,427.54 = 86,664.44/x
  3. Step 3: Cross multiply
    158,285.72x = 218,427.54 × 86,664.44
  4. Step 4: Simplify right side
    158,285.72x = 18,929,900,434.68
  5. Step 5: Solve for x
    x = 18,929,900,434.68/158,285.72
  6. Step 6: Final answer
    x = 119,593.23

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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.