Home / 189,372.05-284,157.44-71,125.01

Finding the Fourth Proportional to 189,372.05, 284,157.44 and 71,125.01

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Solution

The fourth proportional to 189,372.05, 284,157.44 and 71,125.01 is: 106,724.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,372.05 : 284,157.44 = 71,125.01 : x
  2. Step 2: Convert to fraction form
    189,372.05/284,157.44 = 71,125.01/x
  3. Step 3: Cross multiply
    189,372.05x = 284,157.44 × 71,125.01
  4. Step 4: Simplify right side
    189,372.05x = 20,210,700,405.95
  5. Step 5: Solve for x
    x = 20,210,700,405.95/189,372.05
  6. Step 6: Final answer
    x = 106,724.83

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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.