Home / 143,075.97-197,448.44-79,416.45

Finding the Fourth Proportional to 143,075.97, 197,448.44 and 79,416.45

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Solution

The fourth proportional to 143,075.97, 197,448.44 and 79,416.45 is: 109,596.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,075.97 : 197,448.44 = 79,416.45 : x
  2. Step 2: Convert to fraction form
    143,075.97/197,448.44 = 79,416.45/x
  3. Step 3: Cross multiply
    143,075.97x = 197,448.44 × 79,416.45
  4. Step 4: Simplify right side
    143,075.97x = 15,680,653,765.76
  5. Step 5: Solve for x
    x = 15,680,653,765.76/143,075.97
  6. Step 6: Final answer
    x = 109,596.70

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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.