Home / 170,928.41-256,389.78-65,770.16

Finding the Fourth Proportional to 170,928.41, 256,389.78 and 65,770.16

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Solution

The fourth proportional to 170,928.41, 256,389.78 and 65,770.16 is: 98,654.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,928.41 : 256,389.78 = 65,770.16 : x
  2. Step 2: Convert to fraction form
    170,928.41/256,389.78 = 65,770.16/x
  3. Step 3: Cross multiply
    170,928.41x = 256,389.78 × 65,770.16
  4. Step 4: Simplify right side
    170,928.41x = 16,862,796,852.96
  5. Step 5: Solve for x
    x = 16,862,796,852.96/170,928.41
  6. Step 6: Final answer
    x = 98,654.15

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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.