Home / 189,766.60-284,430.78-71,362.42

Finding the Fourth Proportional to 189,766.60, 284,430.78 and 71,362.42

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Solution

The fourth proportional to 189,766.60, 284,430.78 and 71,362.42 is: 106,961.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,766.60 : 284,430.78 = 71,362.42 : x
  2. Step 2: Convert to fraction form
    189,766.60/284,430.78 = 71,362.42/x
  3. Step 3: Cross multiply
    189,766.60x = 284,430.78 × 71,362.42
  4. Step 4: Simplify right side
    189,766.60x = 20,297,668,783.29
  5. Step 5: Solve for x
    x = 20,297,668,783.29/189,766.60
  6. Step 6: Final answer
    x = 106,961.23

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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.