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Finding the Fourth Proportional to 161,492.85, 222,887.84 and 101,087.91

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Solution

The fourth proportional to 161,492.85, 222,887.84 and 101,087.91 is: 139,518.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,492.85 : 222,887.84 = 101,087.91 : x
  2. Step 2: Convert to fraction form
    161,492.85/222,887.84 = 101,087.91/x
  3. Step 3: Cross multiply
    161,492.85x = 222,887.84 × 101,087.91
  4. Step 4: Simplify right side
    161,492.85x = 22,531,265,404.57
  5. Step 5: Solve for x
    x = 22,531,265,404.57/161,492.85
  6. Step 6: Final answer
    x = 139,518.66

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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.