Home / 143,715.18-198,314.06-80,051.60

Finding the Fourth Proportional to 143,715.18, 198,314.06 and 80,051.60

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Solution

The fourth proportional to 143,715.18, 198,314.06 and 80,051.60 is: 110,464.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,715.18 : 198,314.06 = 80,051.60 : x
  2. Step 2: Convert to fraction form
    143,715.18/198,314.06 = 80,051.60/x
  3. Step 3: Cross multiply
    143,715.18x = 198,314.06 × 80,051.60
  4. Step 4: Simplify right side
    143,715.18x = 15,875,357,805.50
  5. Step 5: Solve for x
    x = 15,875,357,805.50/143,715.18
  6. Step 6: Final answer
    x = 110,464.03

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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.