Home / 289,617.24-434,406.38-100,080.21

Finding the Fourth Proportional to 289,617.24, 434,406.38 and 100,080.21

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Solution

The fourth proportional to 289,617.24, 434,406.38 and 100,080.21 is: 150,113.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,617.24 : 434,406.38 = 100,080.21 : x
  2. Step 2: Convert to fraction form
    289,617.24/434,406.38 = 100,080.21/x
  3. Step 3: Cross multiply
    289,617.24x = 434,406.38 × 100,080.21
  4. Step 4: Simplify right side
    289,617.24x = 43,475,479,313.51
  5. Step 5: Solve for x
    x = 43,475,479,313.51/289,617.24
  6. Step 6: Final answer
    x = 150,113.57

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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.