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Finding the Fourth Proportional to 141,021.60, 211,647.60 and 136,413.60

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Solution

The fourth proportional to 141,021.60, 211,647.60 and 136,413.60 is: 204,731.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,021.60 : 211,647.60 = 136,413.60 : x
  2. Step 2: Convert to fraction form
    141,021.60/211,647.60 = 136,413.60/x
  3. Step 3: Cross multiply
    141,021.60x = 211,647.60 × 136,413.60
  4. Step 4: Simplify right side
    141,021.60x = 28,871,611,047.36
  5. Step 5: Solve for x
    x = 28,871,611,047.36/141,021.60
  6. Step 6: Final answer
    x = 204,731.84

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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.