Home / 107,890.50-148,903.31-61,968.21

Finding the Fourth Proportional to 107,890.50, 148,903.31 and 61,968.21

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Solution

The fourth proportional to 107,890.50, 148,903.31 and 61,968.21 is: 85,524.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,890.50 : 148,903.31 = 61,968.21 : x
  2. Step 2: Convert to fraction form
    107,890.50/148,903.31 = 61,968.21/x
  3. Step 3: Cross multiply
    107,890.50x = 148,903.31 × 61,968.21
  4. Step 4: Simplify right side
    107,890.50x = 9,227,271,180.31
  5. Step 5: Solve for x
    x = 9,227,271,180.31/107,890.50
  6. Step 6: Final answer
    x = 85,524.41

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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.