Home / 143,438.46-197,952.39-79,777.50

Finding the Fourth Proportional to 143,438.46, 197,952.39 and 79,777.50

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Solution

The fourth proportional to 143,438.46, 197,952.39 and 79,777.50 is: 110,097.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,438.46 : 197,952.39 = 79,777.50 : x
  2. Step 2: Convert to fraction form
    143,438.46/197,952.39 = 79,777.50/x
  3. Step 3: Cross multiply
    143,438.46x = 197,952.39 × 79,777.50
  4. Step 4: Simplify right side
    143,438.46x = 15,792,146,793.23
  5. Step 5: Solve for x
    x = 15,792,146,793.23/143,438.46
  6. Step 6: Final answer
    x = 110,097.02

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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.