Home / 189,839.79-284,760.32-71,479.35

Finding the Fourth Proportional to 189,839.79, 284,760.32 and 71,479.35

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Solution

The fourth proportional to 189,839.79, 284,760.32 and 71,479.35 is: 107,219.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,839.79 : 284,760.32 = 71,479.35 : x
  2. Step 2: Convert to fraction form
    189,839.79/284,760.32 = 71,479.35/x
  3. Step 3: Cross multiply
    189,839.79x = 284,760.32 × 71,479.35
  4. Step 4: Simplify right side
    189,839.79x = 20,354,482,222.00
  5. Step 5: Solve for x
    x = 20,354,482,222.00/189,839.79
  6. Step 6: Final answer
    x = 107,219.26

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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.