Home / 117,474.76-162,123.18-66,487.54

Finding the Fourth Proportional to 117,474.76, 162,123.18 and 66,487.54

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Solution

The fourth proportional to 117,474.76, 162,123.18 and 66,487.54 is: 91,757.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,474.76 : 162,123.18 = 66,487.54 : x
  2. Step 2: Convert to fraction form
    117,474.76/162,123.18 = 66,487.54/x
  3. Step 3: Cross multiply
    117,474.76x = 162,123.18 × 66,487.54
  4. Step 4: Simplify right side
    117,474.76x = 10,779,171,415.18
  5. Step 5: Solve for x
    x = 10,779,171,415.18/117,474.76
  6. Step 6: Final answer
    x = 91,757.34

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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.