Home / 135,490.32-203,176.62-72,296.34

Finding the Fourth Proportional to 135,490.32, 203,176.62 and 72,296.34

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Solution

The fourth proportional to 135,490.32, 203,176.62 and 72,296.34 is: 108,413.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,490.32 : 203,176.62 = 72,296.34 : x
  2. Step 2: Convert to fraction form
    135,490.32/203,176.62 = 72,296.34/x
  3. Step 3: Cross multiply
    135,490.32x = 203,176.62 × 72,296.34
  4. Step 4: Simplify right side
    135,490.32x = 14,688,925,999.57
  5. Step 5: Solve for x
    x = 14,688,925,999.57/135,490.32
  6. Step 6: Final answer
    x = 108,413.10

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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.