Home / 158,890.60-219,215.37-90,859.11

Finding the Fourth Proportional to 158,890.60, 219,215.37 and 90,859.11

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Solution

The fourth proportional to 158,890.60, 219,215.37 and 90,859.11 is: 125,354.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,890.60 : 219,215.37 = 90,859.11 : x
  2. Step 2: Convert to fraction form
    158,890.60/219,215.37 = 90,859.11/x
  3. Step 3: Cross multiply
    158,890.60x = 219,215.37 × 90,859.11
  4. Step 4: Simplify right side
    158,890.60x = 19,917,713,416.52
  5. Step 5: Solve for x
    x = 19,917,713,416.52/158,890.60
  6. Step 6: Final answer
    x = 125,354.89

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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.