Home / 143,168.16-197,601.09-82,741.35

Finding the Fourth Proportional to 143,168.16, 197,601.09 and 82,741.35

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Solution

The fourth proportional to 143,168.16, 197,601.09 and 82,741.35 is: 114,199.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,168.16 : 197,601.09 = 82,741.35 : x
  2. Step 2: Convert to fraction form
    143,168.16/197,601.09 = 82,741.35/x
  3. Step 3: Cross multiply
    143,168.16x = 197,601.09 × 82,741.35
  4. Step 4: Simplify right side
    143,168.16x = 16,349,780,948.07
  5. Step 5: Solve for x
    x = 16,349,780,948.07/143,168.16
  6. Step 6: Final answer
    x = 114,199.84

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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.