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Finding the Fourth Proportional to 103,620.40, 155,430.60 and 37,062.70

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Solution

The fourth proportional to 103,620.40, 155,430.60 and 37,062.70 is: 55,594.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.40 : 155,430.60 = 37,062.70 : x
  2. Step 2: Convert to fraction form
    103,620.40/155,430.60 = 37,062.70/x
  3. Step 3: Cross multiply
    103,620.40x = 155,430.60 × 37,062.70
  4. Step 4: Simplify right side
    103,620.40x = 5,760,677,698.62
  5. Step 5: Solve for x
    x = 5,760,677,698.62/103,620.40
  6. Step 6: Final answer
    x = 55,594.05

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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.