Home / 259,186.77-388,513.53-99,225.03

Finding the Fourth Proportional to 259,186.77, 388,513.53 and 99,225.03

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Solution

The fourth proportional to 259,186.77, 388,513.53 and 99,225.03 is: 148,735.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,186.77 : 388,513.53 = 99,225.03 : x
  2. Step 2: Convert to fraction form
    259,186.77/388,513.53 = 99,225.03/x
  3. Step 3: Cross multiply
    259,186.77x = 388,513.53 × 99,225.03
  4. Step 4: Simplify right side
    259,186.77x = 38,550,266,669.66
  5. Step 5: Solve for x
    x = 38,550,266,669.66/259,186.77
  6. Step 6: Final answer
    x = 148,735.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.