Home / 104,945.20-144,896.98-84,890.40

Finding the Fourth Proportional to 104,945.20, 144,896.98 and 84,890.40

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Solution

The fourth proportional to 104,945.20, 144,896.98 and 84,890.40 is: 117,207.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,945.20 : 144,896.98 = 84,890.40 : x
  2. Step 2: Convert to fraction form
    104,945.20/144,896.98 = 84,890.40/x
  3. Step 3: Cross multiply
    104,945.20x = 144,896.98 × 84,890.40
  4. Step 4: Simplify right side
    104,945.20x = 12,300,362,590.99
  5. Step 5: Solve for x
    x = 12,300,362,590.99/104,945.20
  6. Step 6: Final answer
    x = 117,207.48

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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.