Home / 158,043.56-218,096.75-86,419.31

Finding the Fourth Proportional to 158,043.56, 218,096.75 and 86,419.31

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Solution

The fourth proportional to 158,043.56, 218,096.75 and 86,419.31 is: 119,256.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,043.56 : 218,096.75 = 86,419.31 : x
  2. Step 2: Convert to fraction form
    158,043.56/218,096.75 = 86,419.31/x
  3. Step 3: Cross multiply
    158,043.56x = 218,096.75 × 86,419.31
  4. Step 4: Simplify right side
    158,043.56x = 18,847,769,773.81
  5. Step 5: Solve for x
    x = 18,847,769,773.81/158,043.56
  6. Step 6: Final answer
    x = 119,256.81

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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.