Home / 259,001.18-388,528.77-99,076.80

Finding the Fourth Proportional to 259,001.18, 388,528.77 and 99,076.80

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Solution

The fourth proportional to 259,001.18, 388,528.77 and 99,076.80 is: 148,625.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,001.18 : 388,528.77 = 99,076.80 : x
  2. Step 2: Convert to fraction form
    259,001.18/388,528.77 = 99,076.80/x
  3. Step 3: Cross multiply
    259,001.18x = 388,528.77 × 99,076.80
  4. Step 4: Simplify right side
    259,001.18x = 38,494,189,068.06
  5. Step 5: Solve for x
    x = 38,494,189,068.06/259,001.18
  6. Step 6: Final answer
    x = 148,625.54

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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.