Home / 158,609.24-218,894.59-87,003.09

Finding the Fourth Proportional to 158,609.24, 218,894.59 and 87,003.09

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Solution

The fourth proportional to 158,609.24, 218,894.59 and 87,003.09 is: 120,071.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,609.24 : 218,894.59 = 87,003.09 : x
  2. Step 2: Convert to fraction form
    158,609.24/218,894.59 = 87,003.09/x
  3. Step 3: Cross multiply
    158,609.24x = 218,894.59 × 87,003.09
  4. Step 4: Simplify right side
    158,609.24x = 19,044,506,317.63
  5. Step 5: Solve for x
    x = 19,044,506,317.63/158,609.24
  6. Step 6: Final answer
    x = 120,071.86

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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.