Home / 103,099.20-153,413.76-102,749.28

Finding the Fourth Proportional to 103,099.20, 153,413.76 and 102,749.28

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Solution

The fourth proportional to 103,099.20, 153,413.76 and 102,749.28 is: 152,893.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,099.20 : 153,413.76 = 102,749.28 : x
  2. Step 2: Convert to fraction form
    103,099.20/153,413.76 = 102,749.28/x
  3. Step 3: Cross multiply
    103,099.20x = 153,413.76 × 102,749.28
  4. Step 4: Simplify right side
    103,099.20x = 15,763,153,382.09
  5. Step 5: Solve for x
    x = 15,763,153,382.09/103,099.20
  6. Step 6: Final answer
    x = 152,893.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.