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Finding the Fourth Proportional to 103,647.80, 155,277.30 and 96,649.40

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Solution

The fourth proportional to 103,647.80, 155,277.30 and 96,649.40 is: 144,792.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,647.80 : 155,277.30 = 96,649.40 : x
  2. Step 2: Convert to fraction form
    103,647.80/155,277.30 = 96,649.40/x
  3. Step 3: Cross multiply
    103,647.80x = 155,277.30 × 96,649.40
  4. Step 4: Simplify right side
    103,647.80x = 15,007,457,878.62
  5. Step 5: Solve for x
    x = 15,007,457,878.62/103,647.80
  6. Step 6: Final answer
    x = 144,792.83

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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.