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Finding the Fourth Proportional to 103,636.90, 154,698.67 and 88,940.26

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Solution

The fourth proportional to 103,636.90, 154,698.67 and 88,940.26 is: 132,761.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.90 : 154,698.67 = 88,940.26 : x
  2. Step 2: Convert to fraction form
    103,636.90/154,698.67 = 88,940.26/x
  3. Step 3: Cross multiply
    103,636.90x = 154,698.67 × 88,940.26
  4. Step 4: Simplify right side
    103,636.90x = 13,758,939,931.45
  5. Step 5: Solve for x
    x = 13,758,939,931.45/103,636.90
  6. Step 6: Final answer
    x = 132,761.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.