Home / 107,916.21-148,939.02-61,993.80

Finding the Fourth Proportional to 107,916.21, 148,939.02 and 61,993.80

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Solution

The fourth proportional to 107,916.21, 148,939.02 and 61,993.80 is: 85,559.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,916.21 : 148,939.02 = 61,993.80 : x
  2. Step 2: Convert to fraction form
    107,916.21/148,939.02 = 61,993.80/x
  3. Step 3: Cross multiply
    107,916.21x = 148,939.02 × 61,993.80
  4. Step 4: Simplify right side
    107,916.21x = 9,233,295,818.08
  5. Step 5: Solve for x
    x = 9,233,295,818.08/107,916.21
  6. Step 6: Final answer
    x = 85,559.86

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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.