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Finding the Fourth Proportional to 181,059.37, 249,860.09 and 100,487.59

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Solution

The fourth proportional to 181,059.37, 249,860.09 and 100,487.59 is: 138,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,059.37 : 249,860.09 = 100,487.59 : x
  2. Step 2: Convert to fraction form
    181,059.37/249,860.09 = 100,487.59/x
  3. Step 3: Cross multiply
    181,059.37x = 249,860.09 × 100,487.59
  4. Step 4: Simplify right side
    181,059.37x = 25,107,837,907.85
  5. Step 5: Solve for x
    x = 25,107,837,907.85/181,059.37
  6. Step 6: Final answer
    x = 138,671.85

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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.