Home / 143,266.14-197,698.59-79,601.76

Finding the Fourth Proportional to 143,266.14, 197,698.59 and 79,601.76

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Solution

The fourth proportional to 143,266.14, 197,698.59 and 79,601.76 is: 109,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,266.14 : 197,698.59 = 79,601.76 : x
  2. Step 2: Convert to fraction form
    143,266.14/197,698.59 = 79,601.76/x
  3. Step 3: Cross multiply
    143,266.14x = 197,698.59 × 79,601.76
  4. Step 4: Simplify right side
    143,266.14x = 15,737,155,713.52
  5. Step 5: Solve for x
    x = 15,737,155,713.52/143,266.14
  6. Step 6: Final answer
    x = 109,845.60

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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.