Home / 103,307.44-142,553.31-57,990.41

Finding the Fourth Proportional to 103,307.44, 142,553.31 and 57,990.41

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Solution

The fourth proportional to 103,307.44, 142,553.31 and 57,990.41 is: 80,020.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,307.44 : 142,553.31 = 57,990.41 : x
  2. Step 2: Convert to fraction form
    103,307.44/142,553.31 = 57,990.41/x
  3. Step 3: Cross multiply
    103,307.44x = 142,553.31 × 57,990.41
  4. Step 4: Simplify right side
    103,307.44x = 8,266,724,824.30
  5. Step 5: Solve for x
    x = 8,266,724,824.30/103,307.44
  6. Step 6: Final answer
    x = 80,020.61

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1.5x scale

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.