Home / 103,883.02-155,769.08-53,912.80

Finding the Fourth Proportional to 103,883.02, 155,769.08 and 53,912.80

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Solution

The fourth proportional to 103,883.02, 155,769.08 and 53,912.80 is: 80,840.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,883.02 : 155,769.08 = 53,912.80 : x
  2. Step 2: Convert to fraction form
    103,883.02/155,769.08 = 53,912.80/x
  3. Step 3: Cross multiply
    103,883.02x = 155,769.08 × 53,912.80
  4. Step 4: Simplify right side
    103,883.02x = 8,397,947,256.22
  5. Step 5: Solve for x
    x = 8,397,947,256.22/103,883.02
  6. Step 6: Final answer
    x = 80,840.42

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1.5x scale

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.