Home / 203,412.10-305,204.55-98,176.90

Finding the Fourth Proportional to 203,412.10, 305,204.55 and 98,176.90

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Solution

The fourth proportional to 203,412.10, 305,204.55 and 98,176.90 is: 147,307.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,412.10 : 305,204.55 = 98,176.90 : x
  2. Step 2: Convert to fraction form
    203,412.10/305,204.55 = 98,176.90/x
  3. Step 3: Cross multiply
    203,412.10x = 305,204.55 × 98,176.90
  4. Step 4: Simplify right side
    203,412.10x = 29,964,036,584.90
  5. Step 5: Solve for x
    x = 29,964,036,584.90/203,412.10
  6. Step 6: Final answer
    x = 147,307.05

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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.