Home / 104,209.98-143,809.74-56,463.36

Finding the Fourth Proportional to 104,209.98, 143,809.74 and 56,463.36

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Solution

The fourth proportional to 104,209.98, 143,809.74 and 56,463.36 is: 77,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,209.98 : 143,809.74 = 56,463.36 : x
  2. Step 2: Convert to fraction form
    104,209.98/143,809.74 = 56,463.36/x
  3. Step 3: Cross multiply
    104,209.98x = 143,809.74 × 56,463.36
  4. Step 4: Simplify right side
    104,209.98x = 8,119,981,121.13
  5. Step 5: Solve for x
    x = 8,119,981,121.13/104,209.98
  6. Step 6: Final answer
    x = 77,919.42

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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.