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Finding the Fourth Proportional to 69,000.98, 103,199.51 and 63,957.21

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Solution

The fourth proportional to 69,000.98, 103,199.51 and 63,957.21 is: 95,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,000.98 : 103,199.51 = 63,957.21 : x
  2. Step 2: Convert to fraction form
    69,000.98/103,199.51 = 63,957.21/x
  3. Step 3: Cross multiply
    69,000.98x = 103,199.51 × 63,957.21
  4. Step 4: Simplify right side
    69,000.98x = 6,600,352,413.18
  5. Step 5: Solve for x
    x = 6,600,352,413.18/69,000.98
  6. Step 6: Final answer
    x = 95,655.93

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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.