Home / 143,605.89-198,158.93-83,168.14

Finding the Fourth Proportional to 143,605.89, 198,158.93 and 83,168.14

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Solution

The fourth proportional to 143,605.89, 198,158.93 and 83,168.14 is: 114,762.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,605.89 : 198,158.93 = 83,168.14 : x
  2. Step 2: Convert to fraction form
    143,605.89/198,158.93 = 83,168.14/x
  3. Step 3: Cross multiply
    143,605.89x = 198,158.93 × 83,168.14
  4. Step 4: Simplify right side
    143,605.89x = 16,480,509,632.49
  5. Step 5: Solve for x
    x = 16,480,509,632.49/143,605.89
  6. Step 6: Final answer
    x = 114,762.07

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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.