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Finding the Fourth Proportional to 117,383.57, 161,860.95 and 87,224.84

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Solution

The fourth proportional to 117,383.57, 161,860.95 and 87,224.84 is: 120,274.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,383.57 : 161,860.95 = 87,224.84 : x
  2. Step 2: Convert to fraction form
    117,383.57/161,860.95 = 87,224.84/x
  3. Step 3: Cross multiply
    117,383.57x = 161,860.95 × 87,224.84
  4. Step 4: Simplify right side
    117,383.57x = 14,118,295,466.00
  5. Step 5: Solve for x
    x = 14,118,295,466.00/117,383.57
  6. Step 6: Final answer
    x = 120,274.89

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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.