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Finding the Fourth Proportional to 84,242.60, 116,160.01 and 68,881.22

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Solution

The fourth proportional to 84,242.60, 116,160.01 and 68,881.22 is: 94,978.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,242.60 : 116,160.01 = 68,881.22 : x
  2. Step 2: Convert to fraction form
    84,242.60/116,160.01 = 68,881.22/x
  3. Step 3: Cross multiply
    84,242.60x = 116,160.01 × 68,881.22
  4. Step 4: Simplify right side
    84,242.60x = 8,001,243,204.01
  5. Step 5: Solve for x
    x = 8,001,243,204.01/84,242.60
  6. Step 6: Final answer
    x = 94,978.59

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1.5x scale

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.