Home / 171,478.08-257,204.32-57,626.72

Finding the Fourth Proportional to 171,478.08, 257,204.32 and 57,626.72

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Solution

The fourth proportional to 171,478.08, 257,204.32 and 57,626.72 is: 86,435.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,478.08 : 257,204.32 = 57,626.72 : x
  2. Step 2: Convert to fraction form
    171,478.08/257,204.32 = 57,626.72/x
  3. Step 3: Cross multiply
    171,478.08x = 257,204.32 × 57,626.72
  4. Step 4: Simplify right side
    171,478.08x = 14,821,841,331.43
  5. Step 5: Solve for x
    x = 14,821,841,331.43/171,478.08
  6. Step 6: Final answer
    x = 86,435.78

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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.