Home / 189,225.24-284,034.69-139,361.64

Finding the Fourth Proportional to 189,225.24, 284,034.69 and 139,361.64

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Solution

The fourth proportional to 189,225.24, 284,034.69 and 139,361.64 is: 209,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,225.24 : 284,034.69 = 139,361.64 : x
  2. Step 2: Convert to fraction form
    189,225.24/284,034.69 = 139,361.64/x
  3. Step 3: Cross multiply
    189,225.24x = 284,034.69 × 139,361.64
  4. Step 4: Simplify right side
    189,225.24x = 39,583,540,215.29
  5. Step 5: Solve for x
    x = 39,583,540,215.29/189,225.24
  6. Step 6: Final answer
    x = 209,187.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.