Home / 143,261.93-197,701.51-79,599.73

Finding the Fourth Proportional to 143,261.93, 197,701.51 and 79,599.73

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Solution

The fourth proportional to 143,261.93, 197,701.51 and 79,599.73 is: 109,847.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,261.93 : 197,701.51 = 79,599.73 : x
  2. Step 2: Convert to fraction form
    143,261.93/197,701.51 = 79,599.73/x
  3. Step 3: Cross multiply
    143,261.93x = 197,701.51 × 79,599.73
  4. Step 4: Simplify right side
    143,261.93x = 15,736,986,816.59
  5. Step 5: Solve for x
    x = 15,736,986,816.59/143,261.93
  6. Step 6: Final answer
    x = 109,847.65

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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.