Home / 143,037.04-197,393.28-79,378.96

Finding the Fourth Proportional to 143,037.04, 197,393.28 and 79,378.96

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Solution

The fourth proportional to 143,037.04, 197,393.28 and 79,378.96 is: 109,544.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,037.04 : 197,393.28 = 79,378.96 : x
  2. Step 2: Convert to fraction form
    143,037.04/197,393.28 = 79,378.96/x
  3. Step 3: Cross multiply
    143,037.04x = 197,393.28 × 79,378.96
  4. Step 4: Simplify right side
    143,037.04x = 15,668,873,277.39
  5. Step 5: Solve for x
    x = 15,668,873,277.39/143,037.04
  6. Step 6: Final answer
    x = 109,544.17

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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.