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Finding the Fourth Proportional to 171,124.48, 256,625.28 and 65,890.56

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Solution

The fourth proportional to 171,124.48, 256,625.28 and 65,890.56 is: 98,812.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,124.48 : 256,625.28 = 65,890.56 : x
  2. Step 2: Convert to fraction form
    171,124.48/256,625.28 = 65,890.56/x
  3. Step 3: Cross multiply
    171,124.48x = 256,625.28 × 65,890.56
  4. Step 4: Simplify right side
    171,124.48x = 16,909,183,409.36
  5. Step 5: Solve for x
    x = 16,909,183,409.36/171,124.48
  6. Step 6: Final answer
    x = 98,812.18

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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.