Home / 171,827.30-257,735.28-70,621.86

Finding the Fourth Proportional to 171,827.30, 257,735.28 and 70,621.86

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Solution

The fourth proportional to 171,827.30, 257,735.28 and 70,621.86 is: 105,930.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,827.30 : 257,735.28 = 70,621.86 : x
  2. Step 2: Convert to fraction form
    171,827.30/257,735.28 = 70,621.86/x
  3. Step 3: Cross multiply
    171,827.30x = 257,735.28 × 70,621.86
  4. Step 4: Simplify right side
    171,827.30x = 18,201,744,861.22
  5. Step 5: Solve for x
    x = 18,201,744,861.22/171,827.30
  6. Step 6: Final answer
    x = 105,930.46

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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.