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Finding the Fourth Proportional to 103,565.40, 155,348.10 and 37,007.70

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Solution

The fourth proportional to 103,565.40, 155,348.10 and 37,007.70 is: 55,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,565.40 : 155,348.10 = 37,007.70 : x
  2. Step 2: Convert to fraction form
    103,565.40/155,348.10 = 37,007.70/x
  3. Step 3: Cross multiply
    103,565.40x = 155,348.10 × 37,007.70
  4. Step 4: Simplify right side
    103,565.40x = 5,749,075,880.37
  5. Step 5: Solve for x
    x = 5,749,075,880.37/103,565.40
  6. Step 6: Final answer
    x = 55,511.55

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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.