Home / 159,412.44-219,986.51-87,799.13

Finding the Fourth Proportional to 159,412.44, 219,986.51 and 87,799.13

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Solution

The fourth proportional to 159,412.44, 219,986.51 and 87,799.13 is: 121,161.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,412.44 : 219,986.51 = 87,799.13 : x
  2. Step 2: Convert to fraction form
    159,412.44/219,986.51 = 87,799.13/x
  3. Step 3: Cross multiply
    159,412.44x = 219,986.51 × 87,799.13
  4. Step 4: Simplify right side
    159,412.44x = 19,314,624,189.74
  5. Step 5: Solve for x
    x = 19,314,624,189.74/159,412.44
  6. Step 6: Final answer
    x = 121,161.34

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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.