Home / 171,005.48-256,555.20-71,212.40

Finding the Fourth Proportional to 171,005.48, 256,555.20 and 71,212.40

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Solution

The fourth proportional to 171,005.48, 256,555.20 and 71,212.40 is: 106,838.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,005.48 : 256,555.20 = 71,212.40 : x
  2. Step 2: Convert to fraction form
    171,005.48/256,555.20 = 71,212.40/x
  3. Step 3: Cross multiply
    171,005.48x = 256,555.20 × 71,212.40
  4. Step 4: Simplify right side
    171,005.48x = 18,269,911,524.48
  5. Step 5: Solve for x
    x = 18,269,911,524.48/171,005.48
  6. Step 6: Final answer
    x = 106,838.16

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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.