Home / 143,856.41-198,482.87-81,766.02

Finding the Fourth Proportional to 143,856.41, 198,482.87 and 81,766.02

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Solution

The fourth proportional to 143,856.41, 198,482.87 and 81,766.02 is: 112,814.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856.41 : 198,482.87 = 81,766.02 : x
  2. Step 2: Convert to fraction form
    143,856.41/198,482.87 = 81,766.02/x
  3. Step 3: Cross multiply
    143,856.41x = 198,482.87 × 81,766.02
  4. Step 4: Simplify right side
    143,856.41x = 16,229,155,266.80
  5. Step 5: Solve for x
    x = 16,229,155,266.80/143,856.41
  6. Step 6: Final answer
    x = 112,814.96

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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.