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Finding the Fourth Proportional to 135,088.40, 202,413.90 and 127,215.20

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Solution

The fourth proportional to 135,088.40, 202,413.90 and 127,215.20 is: 190,616.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,088.40 : 202,413.90 = 127,215.20 : x
  2. Step 2: Convert to fraction form
    135,088.40/202,413.90 = 127,215.20/x
  3. Step 3: Cross multiply
    135,088.40x = 202,413.90 × 127,215.20
  4. Step 4: Simplify right side
    135,088.40x = 25,750,124,771.28
  5. Step 5: Solve for x
    x = 25,750,124,771.28/135,088.40
  6. Step 6: Final answer
    x = 190,616.85

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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.