Home / 150,897.57-208,237.55-81,986.42

Finding the Fourth Proportional to 150,897.57, 208,237.55 and 81,986.42

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Solution

The fourth proportional to 150,897.57, 208,237.55 and 81,986.42 is: 113,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,897.57 : 208,237.55 = 81,986.42 : x
  2. Step 2: Convert to fraction form
    150,897.57/208,237.55 = 81,986.42/x
  3. Step 3: Cross multiply
    150,897.57x = 208,237.55 × 81,986.42
  4. Step 4: Simplify right side
    150,897.57x = 17,072,649,782.95
  5. Step 5: Solve for x
    x = 17,072,649,782.95/150,897.57
  6. Step 6: Final answer
    x = 113,140.65

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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.