Home / 98,120.32-147,181.86-27,999.64

Finding the Fourth Proportional to 98,120.32, 147,181.86 and 27,999.64

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Solution

The fourth proportional to 98,120.32, 147,181.86 and 27,999.64 is: 41,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,120.32 : 147,181.86 = 27,999.64 : x
  2. Step 2: Convert to fraction form
    98,120.32/147,181.86 = 27,999.64/x
  3. Step 3: Cross multiply
    98,120.32x = 147,181.86 × 27,999.64
  4. Step 4: Simplify right side
    98,120.32x = 4,121,039,094.53
  5. Step 5: Solve for x
    x = 4,121,039,094.53/98,120.32
  6. Step 6: Final answer
    x = 41,999.85

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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.