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Finding the Fourth Proportional to 171,856.70, 258,015.90 and 100,852.10

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Solution

The fourth proportional to 171,856.70, 258,015.90 and 100,852.10 is: 151,413.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,856.70 : 258,015.90 = 100,852.10 : x
  2. Step 2: Convert to fraction form
    171,856.70/258,015.90 = 100,852.10/x
  3. Step 3: Cross multiply
    171,856.70x = 258,015.90 × 100,852.10
  4. Step 4: Simplify right side
    171,856.70x = 26,021,445,348.39
  5. Step 5: Solve for x
    x = 26,021,445,348.39/171,856.70
  6. Step 6: Final answer
    x = 151,413.62

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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.