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Finding the Fourth Proportional to 117,219.56, 161,774.82 and 69,480.68

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Solution

The fourth proportional to 117,219.56, 161,774.82 and 69,480.68 is: 95,890.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,219.56 : 161,774.82 = 69,480.68 : x
  2. Step 2: Convert to fraction form
    117,219.56/161,774.82 = 69,480.68/x
  3. Step 3: Cross multiply
    117,219.56x = 161,774.82 × 69,480.68
  4. Step 4: Simplify right side
    117,219.56x = 11,240,224,500.48
  5. Step 5: Solve for x
    x = 11,240,224,500.48/117,219.56
  6. Step 6: Final answer
    x = 95,890.35

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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.