Home / 189,889.02-262,072.95-109,314.78

Finding the Fourth Proportional to 189,889.02, 262,072.95 and 109,314.78

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Solution

The fourth proportional to 189,889.02, 262,072.95 and 109,314.78 is: 150,869.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,889.02 : 262,072.95 = 109,314.78 : x
  2. Step 2: Convert to fraction form
    189,889.02/262,072.95 = 109,314.78/x
  3. Step 3: Cross multiply
    189,889.02x = 262,072.95 × 109,314.78
  4. Step 4: Simplify right side
    189,889.02x = 28,648,446,873.20
  5. Step 5: Solve for x
    x = 28,648,446,873.20/189,889.02
  6. Step 6: Final answer
    x = 150,869.42

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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.