Home / 104,016.72-143,412.92-86,813.68

Finding the Fourth Proportional to 104,016.72, 143,412.92 and 86,813.68

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Solution

The fourth proportional to 104,016.72, 143,412.92 and 86,813.68 is: 119,694.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,016.72 : 143,412.92 = 86,813.68 : x
  2. Step 2: Convert to fraction form
    104,016.72/143,412.92 = 86,813.68/x
  3. Step 3: Cross multiply
    104,016.72x = 143,412.92 × 86,813.68
  4. Step 4: Simplify right side
    104,016.72x = 12,450,203,344.75
  5. Step 5: Solve for x
    x = 12,450,203,344.75/104,016.72
  6. Step 6: Final answer
    x = 119,694.25

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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.