Home / 203,457.06-280,767.84-112,813.20

Finding the Fourth Proportional to 203,457.06, 280,767.84 and 112,813.20

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Solution

The fourth proportional to 203,457.06, 280,767.84 and 112,813.20 is: 155,680.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,457.06 : 280,767.84 = 112,813.20 : x
  2. Step 2: Convert to fraction form
    203,457.06/280,767.84 = 112,813.20/x
  3. Step 3: Cross multiply
    203,457.06x = 280,767.84 × 112,813.20
  4. Step 4: Simplify right side
    203,457.06x = 31,674,318,487.49
  5. Step 5: Solve for x
    x = 31,674,318,487.49/203,457.06
  6. Step 6: Final answer
    x = 155,680.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.