Home / 158,904.67-219,289.99-87,284.69

Finding the Fourth Proportional to 158,904.67, 219,289.99 and 87,284.69

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Solution

The fourth proportional to 158,904.67, 219,289.99 and 87,284.69 is: 120,453.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,904.67 : 219,289.99 = 87,284.69 : x
  2. Step 2: Convert to fraction form
    158,904.67/219,289.99 = 87,284.69/x
  3. Step 3: Cross multiply
    158,904.67x = 219,289.99 × 87,284.69
  4. Step 4: Simplify right side
    158,904.67x = 19,140,658,797.25
  5. Step 5: Solve for x
    x = 19,140,658,797.25/158,904.67
  6. Step 6: Final answer
    x = 120,453.72

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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.