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Finding the Fourth Proportional to 104,299.68, 143,922.88 and 64,015.12

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Solution

The fourth proportional to 104,299.68, 143,922.88 and 64,015.12 is: 88,334.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,299.68 : 143,922.88 = 64,015.12 : x
  2. Step 2: Convert to fraction form
    104,299.68/143,922.88 = 64,015.12/x
  3. Step 3: Cross multiply
    104,299.68x = 143,922.88 × 64,015.12
  4. Step 4: Simplify right side
    104,299.68x = 9,213,240,433.95
  5. Step 5: Solve for x
    x = 9,213,240,433.95/104,299.68
  6. Step 6: Final answer
    x = 88,334.31

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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.