Home / 171,828.30-257,736.78-70,622.86

Finding the Fourth Proportional to 171,828.30, 257,736.78 and 70,622.86

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Solution

The fourth proportional to 171,828.30, 257,736.78 and 70,622.86 is: 105,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,828.30 : 257,736.78 = 70,622.86 : x
  2. Step 2: Convert to fraction form
    171,828.30/257,736.78 = 70,622.86/x
  3. Step 3: Cross multiply
    171,828.30x = 257,736.78 × 70,622.86
  4. Step 4: Simplify right side
    171,828.30x = 18,202,108,530.79
  5. Step 5: Solve for x
    x = 18,202,108,530.79/171,828.30
  6. Step 6: Final answer
    x = 105,931.96

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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.