Home / 189,915.42-262,072.62-103,857.30

Finding the Fourth Proportional to 189,915.42, 262,072.62 and 103,857.30

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Solution

The fourth proportional to 189,915.42, 262,072.62 and 103,857.30 is: 143,317.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,915.42 : 262,072.62 = 103,857.30 : x
  2. Step 2: Convert to fraction form
    189,915.42/262,072.62 = 103,857.30/x
  3. Step 3: Cross multiply
    189,915.42x = 262,072.62 × 103,857.30
  4. Step 4: Simplify right side
    189,915.42x = 27,218,154,717.13
  5. Step 5: Solve for x
    x = 27,218,154,717.13/189,915.42
  6. Step 6: Final answer
    x = 143,317.24

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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.