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Finding the Fourth Proportional to 159,597.69, 220,246.28 and 87,980.27

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Solution

The fourth proportional to 159,597.69, 220,246.28 and 87,980.27 is: 121,413.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,597.69 : 220,246.28 = 87,980.27 : x
  2. Step 2: Convert to fraction form
    159,597.69/220,246.28 = 87,980.27/x
  3. Step 3: Cross multiply
    159,597.69x = 220,246.28 × 87,980.27
  4. Step 4: Simplify right side
    159,597.69x = 19,377,327,180.90
  5. Step 5: Solve for x
    x = 19,377,327,180.90/159,597.69
  6. Step 6: Final answer
    x = 121,413.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.