Home / 150,782.09-208,071.12-82,808.01

Finding the Fourth Proportional to 150,782.09, 208,071.12 and 82,808.01

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Solution

The fourth proportional to 150,782.09, 208,071.12 and 82,808.01 is: 114,270.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,782.09 : 208,071.12 = 82,808.01 : x
  2. Step 2: Convert to fraction form
    150,782.09/208,071.12 = 82,808.01/x
  3. Step 3: Cross multiply
    150,782.09x = 208,071.12 × 82,808.01
  4. Step 4: Simplify right side
    150,782.09x = 17,229,955,385.67
  5. Step 5: Solve for x
    x = 17,229,955,385.67/150,782.09
  6. Step 6: Final answer
    x = 114,270.57

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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.