Home / 108,518.94-149,656.01-74,467.35

Finding the Fourth Proportional to 108,518.94, 149,656.01 and 74,467.35

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Solution

The fourth proportional to 108,518.94, 149,656.01 and 74,467.35 is: 102,696.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,518.94 : 149,656.01 = 74,467.35 : x
  2. Step 2: Convert to fraction form
    108,518.94/149,656.01 = 74,467.35/x
  3. Step 3: Cross multiply
    108,518.94x = 149,656.01 × 74,467.35
  4. Step 4: Simplify right side
    108,518.94x = 11,144,486,103.94
  5. Step 5: Solve for x
    x = 11,144,486,103.94/108,518.94
  6. Step 6: Final answer
    x = 102,696.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.