Home / 104,043.12-143,578.48-56,295.42

Finding the Fourth Proportional to 104,043.12, 143,578.48 and 56,295.42

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Solution

The fourth proportional to 104,043.12, 143,578.48 and 56,295.42 is: 77,687.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,043.12 : 143,578.48 = 56,295.42 : x
  2. Step 2: Convert to fraction form
    104,043.12/143,578.48 = 56,295.42/x
  3. Step 3: Cross multiply
    104,043.12x = 143,578.48 × 56,295.42
  4. Step 4: Simplify right side
    104,043.12x = 8,082,810,834.56
  5. Step 5: Solve for x
    x = 8,082,810,834.56/104,043.12
  6. Step 6: Final answer
    x = 77,687.12

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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.