Home / 143,582.93-198,130.13-83,172.98

Finding the Fourth Proportional to 143,582.93, 198,130.13 and 83,172.98

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Solution

The fourth proportional to 143,582.93, 198,130.13 and 83,172.98 is: 114,770.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,582.93 : 198,130.13 = 83,172.98 : x
  2. Step 2: Convert to fraction form
    143,582.93/198,130.13 = 83,172.98/x
  3. Step 3: Cross multiply
    143,582.93x = 198,130.13 × 83,172.98
  4. Step 4: Simplify right side
    143,582.93x = 16,479,072,382.84
  5. Step 5: Solve for x
    x = 16,479,072,382.84/143,582.93
  6. Step 6: Final answer
    x = 114,770.42

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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.