Home / 171,089.08-256,453.18-71,148.64

Finding the Fourth Proportional to 171,089.08, 256,453.18 and 71,148.64

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Solution

The fourth proportional to 171,089.08, 256,453.18 and 71,148.64 is: 106,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,089.08 : 256,453.18 = 71,148.64 : x
  2. Step 2: Convert to fraction form
    171,089.08/256,453.18 = 71,148.64/x
  3. Step 3: Cross multiply
    171,089.08x = 256,453.18 × 71,148.64
  4. Step 4: Simplify right side
    171,089.08x = 18,246,294,980.68
  5. Step 5: Solve for x
    x = 18,246,294,980.68/171,089.08
  6. Step 6: Final answer
    x = 106,647.92

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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.