Home / 158,992.60-219,399.18-87,371.08

Finding the Fourth Proportional to 158,992.60, 219,399.18 and 87,371.08

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Solution

The fourth proportional to 158,992.60, 219,399.18 and 87,371.08 is: 120,566.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,992.60 : 219,399.18 = 87,371.08 : x
  2. Step 2: Convert to fraction form
    158,992.60/219,399.18 = 87,371.08/x
  3. Step 3: Cross multiply
    158,992.60x = 219,399.18 × 87,371.08
  4. Step 4: Simplify right side
    158,992.60x = 19,169,143,307.71
  5. Step 5: Solve for x
    x = 19,169,143,307.71/158,992.60
  6. Step 6: Final answer
    x = 120,566.26

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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.