Home / 216,151.61-298,276.85-120,664.36

Finding the Fourth Proportional to 216,151.61, 298,276.85 and 120,664.36

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Solution

The fourth proportional to 216,151.61, 298,276.85 and 120,664.36 is: 166,509.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,151.61 : 298,276.85 = 120,664.36 : x
  2. Step 2: Convert to fraction form
    216,151.61/298,276.85 = 120,664.36/x
  3. Step 3: Cross multiply
    216,151.61x = 298,276.85 × 120,664.36
  4. Step 4: Simplify right side
    216,151.61x = 35,991,384,764.03
  5. Step 5: Solve for x
    x = 35,991,384,764.03/216,151.61
  6. Step 6: Final answer
    x = 166,509.91

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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.