Home / 143,077.26-197,423.55-82,638.30

Finding the Fourth Proportional to 143,077.26, 197,423.55 and 82,638.30

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Solution

The fourth proportional to 143,077.26, 197,423.55 and 82,638.30 is: 114,027.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,077.26 : 197,423.55 = 82,638.30 : x
  2. Step 2: Convert to fraction form
    143,077.26/197,423.55 = 82,638.30/x
  3. Step 3: Cross multiply
    143,077.26x = 197,423.55 × 82,638.30
  4. Step 4: Simplify right side
    143,077.26x = 16,314,746,551.97
  5. Step 5: Solve for x
    x = 16,314,746,551.97/143,077.26
  6. Step 6: Final answer
    x = 114,027.53

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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.