Home / 189,426.84-284,052.78-71,013.48

Finding the Fourth Proportional to 189,426.84, 284,052.78 and 71,013.48

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Solution

The fourth proportional to 189,426.84, 284,052.78 and 71,013.48 is: 106,487.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,426.84 : 284,052.78 = 71,013.48 : x
  2. Step 2: Convert to fraction form
    189,426.84/284,052.78 = 71,013.48/x
  3. Step 3: Cross multiply
    189,426.84x = 284,052.78 × 71,013.48
  4. Step 4: Simplify right side
    189,426.84x = 20,171,576,411.47
  5. Step 5: Solve for x
    x = 20,171,576,411.47/189,426.84
  6. Step 6: Final answer
    x = 106,487.42

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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.