Home / 149,899.48-206,855.82-86,247.16

Finding the Fourth Proportional to 149,899.48, 206,855.82 and 86,247.16

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Solution

The fourth proportional to 149,899.48, 206,855.82 and 86,247.16 is: 119,017.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,899.48 : 206,855.82 = 86,247.16 : x
  2. Step 2: Convert to fraction form
    149,899.48/206,855.82 = 86,247.16/x
  3. Step 3: Cross multiply
    149,899.48x = 206,855.82 × 86,247.16
  4. Step 4: Simplify right side
    149,899.48x = 17,840,727,004.47
  5. Step 5: Solve for x
    x = 17,840,727,004.47/149,899.48
  6. Step 6: Final answer
    x = 119,017.94

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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.