Home / 465,441.12-698,147.73-128,502.36

Finding the Fourth Proportional to 465,441.12, 698,147.73 and 128,502.36

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Solution

The fourth proportional to 465,441.12, 698,147.73 and 128,502.36 is: 192,749.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,441.12 : 698,147.73 = 128,502.36 : x
  2. Step 2: Convert to fraction form
    465,441.12/698,147.73 = 128,502.36/x
  3. Step 3: Cross multiply
    465,441.12x = 698,147.73 × 128,502.36
  4. Step 4: Simplify right side
    465,441.12x = 89,713,630,933.64
  5. Step 5: Solve for x
    x = 89,713,630,933.64/465,441.12
  6. Step 6: Final answer
    x = 192,749.69

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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.