Home / 161,900.12-242,791.86-68,413.16

Finding the Fourth Proportional to 161,900.12, 242,791.86 and 68,413.16

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Solution

The fourth proportional to 161,900.12, 242,791.86 and 68,413.16 is: 102,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,900.12 : 242,791.86 = 68,413.16 : x
  2. Step 2: Convert to fraction form
    161,900.12/242,791.86 = 68,413.16/x
  3. Step 3: Cross multiply
    161,900.12x = 242,791.86 × 68,413.16
  4. Step 4: Simplify right side
    161,900.12x = 16,610,158,364.88
  5. Step 5: Solve for x
    x = 16,610,158,364.88/161,900.12
  6. Step 6: Final answer
    x = 102,595.10

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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.