Home / 150,739.28-208,009.80-83,666

Finding the Fourth Proportional to 150,739.28, 208,009.80 and 83,666

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Solution

The fourth proportional to 150,739.28, 208,009.80 and 83,666 is: 115,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,739.28 : 208,009.80 = 83,666 : x
  2. Step 2: Convert to fraction form
    150,739.28/208,009.80 = 83,666/x
  3. Step 3: Cross multiply
    150,739.28x = 208,009.80 × 83,666
  4. Step 4: Simplify right side
    150,739.28x = 17,403,347,926.80
  5. Step 5: Solve for x
    x = 17,403,347,926.80/150,739.28
  6. Step 6: Final answer
    x = 115,453.30

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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.