Home / 171,197.72-256,657.40-71,432.23

Finding the Fourth Proportional to 171,197.72, 256,657.40 and 71,432.23

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Solution

The fourth proportional to 171,197.72, 256,657.40 and 71,432.23 is: 107,090.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,197.72 : 256,657.40 = 71,432.23 : x
  2. Step 2: Convert to fraction form
    171,197.72/256,657.40 = 71,432.23/x
  3. Step 3: Cross multiply
    171,197.72x = 256,657.40 × 71,432.23
  4. Step 4: Simplify right side
    171,197.72x = 18,333,609,697.07
  5. Step 5: Solve for x
    x = 18,333,609,697.07/171,197.72
  6. Step 6: Final answer
    x = 107,090.27

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1.5x scale

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.