Home / 143,940.02-198,646.97-83,510.69

Finding the Fourth Proportional to 143,940.02, 198,646.97 and 83,510.69

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Solution

The fourth proportional to 143,940.02, 198,646.97 and 83,510.69 is: 115,250.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,940.02 : 198,646.97 = 83,510.69 : x
  2. Step 2: Convert to fraction form
    143,940.02/198,646.97 = 83,510.69/x
  3. Step 3: Cross multiply
    143,940.02x = 198,646.97 × 83,510.69
  4. Step 4: Simplify right side
    143,940.02x = 16,589,145,531.11
  5. Step 5: Solve for x
    x = 16,589,145,531.11/143,940.02
  6. Step 6: Final answer
    x = 115,250.40

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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.