Home / 143,189.16-197,591.04-82,712.40

Finding the Fourth Proportional to 143,189.16, 197,591.04 and 82,712.40

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Solution

The fourth proportional to 143,189.16, 197,591.04 and 82,712.40 is: 114,137.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,189.16 : 197,591.04 = 82,712.40 : x
  2. Step 2: Convert to fraction form
    143,189.16/197,591.04 = 82,712.40/x
  3. Step 3: Cross multiply
    143,189.16x = 197,591.04 × 82,712.40
  4. Step 4: Simplify right side
    143,189.16x = 16,343,229,136.90
  5. Step 5: Solve for x
    x = 16,343,229,136.90/143,189.16
  6. Step 6: Final answer
    x = 114,137.34

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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.