Home / 158,821.94-219,174.66-87,206.60

Finding the Fourth Proportional to 158,821.94, 219,174.66 and 87,206.60

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Solution

The fourth proportional to 158,821.94, 219,174.66 and 87,206.60 is: 120,345.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,821.94 : 219,174.66 = 87,206.60 : x
  2. Step 2: Convert to fraction form
    158,821.94/219,174.66 = 87,206.60/x
  3. Step 3: Cross multiply
    158,821.94x = 219,174.66 × 87,206.60
  4. Step 4: Simplify right side
    158,821.94x = 19,113,476,904.76
  5. Step 5: Solve for x
    x = 19,113,476,904.76/158,821.94
  6. Step 6: Final answer
    x = 120,345.32

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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.