Home / 143,949.53-198,689.89-83,539.63

Finding the Fourth Proportional to 143,949.53, 198,689.89 and 83,539.63

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Solution

The fourth proportional to 143,949.53, 198,689.89 and 83,539.63 is: 115,307.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,949.53 : 198,689.89 = 83,539.63 : x
  2. Step 2: Convert to fraction form
    143,949.53/198,689.89 = 83,539.63/x
  3. Step 3: Cross multiply
    143,949.53x = 198,689.89 × 83,539.63
  4. Step 4: Simplify right side
    143,949.53x = 16,598,479,895.34
  5. Step 5: Solve for x
    x = 16,598,479,895.34/143,949.53
  6. Step 6: Final answer
    x = 115,307.64

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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.