Home / 137,244.66-189,247.23-89,409.30

Finding the Fourth Proportional to 137,244.66, 189,247.23 and 89,409.30

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Solution

The fourth proportional to 137,244.66, 189,247.23 and 89,409.30 is: 123,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,244.66 : 189,247.23 = 89,409.30 : x
  2. Step 2: Convert to fraction form
    137,244.66/189,247.23 = 89,409.30/x
  3. Step 3: Cross multiply
    137,244.66x = 189,247.23 × 89,409.30
  4. Step 4: Simplify right side
    137,244.66x = 16,920,462,361.24
  5. Step 5: Solve for x
    x = 16,920,462,361.24/137,244.66
  6. Step 6: Final answer
    x = 123,286.85

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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.