Home / 68,188.16-102,241.28-28,176.32

Finding the Fourth Proportional to 68,188.16, 102,241.28 and 28,176.32

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Solution

The fourth proportional to 68,188.16, 102,241.28 and 28,176.32 is: 42,247.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,188.16 : 102,241.28 = 28,176.32 : x
  2. Step 2: Convert to fraction form
    68,188.16/102,241.28 = 28,176.32/x
  3. Step 3: Cross multiply
    68,188.16x = 102,241.28 × 28,176.32
  4. Step 4: Simplify right side
    68,188.16x = 2,880,783,022.49
  5. Step 5: Solve for x
    x = 2,880,783,022.49/68,188.16
  6. Step 6: Final answer
    x = 42,247.55

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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.