Home / 171,580.42-257,370.81-71,686.18

Finding the Fourth Proportional to 171,580.42, 257,370.81 and 71,686.18

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Solution

The fourth proportional to 171,580.42, 257,370.81 and 71,686.18 is: 107,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,580.42 : 257,370.81 = 71,686.18 : x
  2. Step 2: Convert to fraction form
    171,580.42/257,370.81 = 71,686.18/x
  3. Step 3: Cross multiply
    171,580.42x = 257,370.81 × 71,686.18
  4. Step 4: Simplify right side
    171,580.42x = 18,449,930,212.41
  5. Step 5: Solve for x
    x = 18,449,930,212.41/171,580.42
  6. Step 6: Final answer
    x = 107,529.35

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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.