Home / 158,957.09-219,360.12-87,336.89

Finding the Fourth Proportional to 158,957.09, 219,360.12 and 87,336.89

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Solution

The fourth proportional to 158,957.09, 219,360.12 and 87,336.89 is: 120,524.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,957.09 : 219,360.12 = 87,336.89 : x
  2. Step 2: Convert to fraction form
    158,957.09/219,360.12 = 87,336.89/x
  3. Step 3: Cross multiply
    158,957.09x = 219,360.12 × 87,336.89
  4. Step 4: Simplify right side
    158,957.09x = 19,158,230,670.83
  5. Step 5: Solve for x
    x = 19,158,230,670.83/158,957.09
  6. Step 6: Final answer
    x = 120,524.54

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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.