Home / 103,485.67-155,188.41-40,296.76

Finding the Fourth Proportional to 103,485.67, 155,188.41 and 40,296.76

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Solution

The fourth proportional to 103,485.67, 155,188.41 and 40,296.76 is: 60,429.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,485.67 : 155,188.41 = 40,296.76 : x
  2. Step 2: Convert to fraction form
    103,485.67/155,188.41 = 40,296.76/x
  3. Step 3: Cross multiply
    103,485.67x = 155,188.41 × 40,296.76
  4. Step 4: Simplify right side
    103,485.67x = 6,253,590,112.55
  5. Step 5: Solve for x
    x = 6,253,590,112.55/103,485.67
  6. Step 6: Final answer
    x = 60,429.53

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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.