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Finding the Fourth Proportional to 103,461.19, 155,203.93 and 36,910.78

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Solution

The fourth proportional to 103,461.19, 155,203.93 and 36,910.78 is: 55,370.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,461.19 : 155,203.93 = 36,910.78 : x
  2. Step 2: Convert to fraction form
    103,461.19/155,203.93 = 36,910.78/x
  3. Step 3: Cross multiply
    103,461.19x = 155,203.93 × 36,910.78
  4. Step 4: Simplify right side
    103,461.19x = 5,728,698,115.37
  5. Step 5: Solve for x
    x = 5,728,698,115.37/103,461.19
  6. Step 6: Final answer
    x = 55,370.50

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1.5x scale

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.