Home / 149,012.40-205,586.78-84,474.72

Finding the Fourth Proportional to 149,012.40, 205,586.78 and 84,474.72

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Solution

The fourth proportional to 149,012.40, 205,586.78 and 84,474.72 is: 116,546.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,012.40 : 205,586.78 = 84,474.72 : x
  2. Step 2: Convert to fraction form
    149,012.40/205,586.78 = 84,474.72/x
  3. Step 3: Cross multiply
    149,012.40x = 205,586.78 × 84,474.72
  4. Step 4: Simplify right side
    149,012.40x = 17,366,885,676.20
  5. Step 5: Solve for x
    x = 17,366,885,676.20/149,012.40
  6. Step 6: Final answer
    x = 116,546.58

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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.