Home / 98,219.88-147,334.86-28,109.64

Finding the Fourth Proportional to 98,219.88, 147,334.86 and 28,109.64

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Solution

The fourth proportional to 98,219.88, 147,334.86 and 28,109.64 is: 42,165.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,219.88 : 147,334.86 = 28,109.64 : x
  2. Step 2: Convert to fraction form
    98,219.88/147,334.86 = 28,109.64/x
  3. Step 3: Cross multiply
    98,219.88x = 147,334.86 × 28,109.64
  4. Step 4: Simplify right side
    98,219.88x = 4,141,529,874.05
  5. Step 5: Solve for x
    x = 4,141,529,874.05/98,219.88
  6. Step 6: Final answer
    x = 42,165.90

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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.