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Finding the Fourth Proportional to 94,413.60, 141,620.40 and 89,820.90

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Solution

The fourth proportional to 94,413.60, 141,620.40 and 89,820.90 is: 134,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,413.60 : 141,620.40 = 89,820.90 : x
  2. Step 2: Convert to fraction form
    94,413.60/141,620.40 = 89,820.90/x
  3. Step 3: Cross multiply
    94,413.60x = 141,620.40 × 89,820.90
  4. Step 4: Simplify right side
    94,413.60x = 12,720,471,786.36
  5. Step 5: Solve for x
    x = 12,720,471,786.36/94,413.60
  6. Step 6: Final answer
    x = 134,731.35

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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.