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Finding the Fourth Proportional to 103,096, 154,644.12 and 28,210.60

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Solution

The fourth proportional to 103,096, 154,644.12 and 28,210.60 is: 42,315.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,096 : 154,644.12 = 28,210.60 : x
  2. Step 2: Convert to fraction form
    103,096/154,644.12 = 28,210.60/x
  3. Step 3: Cross multiply
    103,096x = 154,644.12 × 28,210.60
  4. Step 4: Simplify right side
    103,096x = 4,362,603,411.67
  5. Step 5: Solve for x
    x = 4,362,603,411.67/103,096
  6. Step 6: Final answer
    x = 42,315.93

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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.