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Finding the Fourth Proportional to 108,898, 150,305.16 and 66,492.34

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Solution

The fourth proportional to 108,898, 150,305.16 and 66,492.34 is: 91,775.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,898 : 150,305.16 = 66,492.34 : x
  2. Step 2: Convert to fraction form
    108,898/150,305.16 = 66,492.34/x
  3. Step 3: Cross multiply
    108,898x = 150,305.16 × 66,492.34
  4. Step 4: Simplify right side
    108,898x = 9,994,141,802.47
  5. Step 5: Solve for x
    x = 9,994,141,802.47/108,898
  6. Step 6: Final answer
    x = 91,775.26

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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.