Home / 143,970.56-198,683.58-80,306.98

Finding the Fourth Proportional to 143,970.56, 198,683.58 and 80,306.98

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Solution

The fourth proportional to 143,970.56, 198,683.58 and 80,306.98 is: 110,825.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,970.56 : 198,683.58 = 80,306.98 : x
  2. Step 2: Convert to fraction form
    143,970.56/198,683.58 = 80,306.98/x
  3. Step 3: Cross multiply
    143,970.56x = 198,683.58 × 80,306.98
  4. Step 4: Simplify right side
    143,970.56x = 15,955,678,285.39
  5. Step 5: Solve for x
    x = 15,955,678,285.39/143,970.56
  6. Step 6: Final answer
    x = 110,825.98

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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.