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Finding the Fourth Proportional to 133,542.68, 184,413.78 and 85,878.77

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Solution

The fourth proportional to 133,542.68, 184,413.78 and 85,878.77 is: 118,593.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,542.68 : 184,413.78 = 85,878.77 : x
  2. Step 2: Convert to fraction form
    133,542.68/184,413.78 = 85,878.77/x
  3. Step 3: Cross multiply
    133,542.68x = 184,413.78 × 85,878.77
  4. Step 4: Simplify right side
    133,542.68x = 15,837,227,675.38
  5. Step 5: Solve for x
    x = 15,837,227,675.38/133,542.68
  6. Step 6: Final answer
    x = 118,593.01

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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.