Home / 189,942.40-284,913.60-159,529.60

Finding the Fourth Proportional to 189,942.40, 284,913.60 and 159,529.60

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Solution

The fourth proportional to 189,942.40, 284,913.60 and 159,529.60 is: 239,294.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,942.40 : 284,913.60 = 159,529.60 : x
  2. Step 2: Convert to fraction form
    189,942.40/284,913.60 = 159,529.60/x
  3. Step 3: Cross multiply
    189,942.40x = 284,913.60 × 159,529.60
  4. Step 4: Simplify right side
    189,942.40x = 45,452,152,642.56
  5. Step 5: Solve for x
    x = 45,452,152,642.56/189,942.40
  6. Step 6: Final answer
    x = 239,294.40

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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.