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Finding the Fourth Proportional to 103,735.60, 155,603.40 and 102,007.60

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Solution

The fourth proportional to 103,735.60, 155,603.40 and 102,007.60 is: 153,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,735.60 : 155,603.40 = 102,007.60 : x
  2. Step 2: Convert to fraction form
    103,735.60/155,603.40 = 102,007.60/x
  3. Step 3: Cross multiply
    103,735.60x = 155,603.40 × 102,007.60
  4. Step 4: Simplify right side
    103,735.60x = 15,872,729,385.84
  5. Step 5: Solve for x
    x = 15,872,729,385.84/103,735.60
  6. Step 6: Final answer
    x = 153,011.40

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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.