Home / 158,076.56-218,142.58-86,456.36

Finding the Fourth Proportional to 158,076.56, 218,142.58 and 86,456.36

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Solution

The fourth proportional to 158,076.56, 218,142.58 and 86,456.36 is: 119,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,076.56 : 218,142.58 = 86,456.36 : x
  2. Step 2: Convert to fraction form
    158,076.56/218,142.58 = 86,456.36/x
  3. Step 3: Cross multiply
    158,076.56x = 218,142.58 × 86,456.36
  4. Step 4: Simplify right side
    158,076.56x = 18,859,813,427.81
  5. Step 5: Solve for x
    x = 18,859,813,427.81/158,076.56
  6. Step 6: Final answer
    x = 119,308.10

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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.