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Finding the Fourth Proportional to 189,072.72, 283,653.30 and 64,413.72

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Solution

The fourth proportional to 189,072.72, 283,653.30 and 64,413.72 is: 96,635.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,072.72 : 283,653.30 = 64,413.72 : x
  2. Step 2: Convert to fraction form
    189,072.72/283,653.30 = 64,413.72/x
  3. Step 3: Cross multiply
    189,072.72x = 283,653.30 × 64,413.72
  4. Step 4: Simplify right side
    189,072.72x = 18,271,164,243.28
  5. Step 5: Solve for x
    x = 18,271,164,243.28/189,072.72
  6. Step 6: Final answer
    x = 96,635.64

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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.