Home / 143,192.16-197,595.18-82,715.40

Finding the Fourth Proportional to 143,192.16, 197,595.18 and 82,715.40

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Solution

The fourth proportional to 143,192.16, 197,595.18 and 82,715.40 is: 114,141.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,192.16 : 197,595.18 = 82,715.40 : x
  2. Step 2: Convert to fraction form
    143,192.16/197,595.18 = 82,715.40/x
  3. Step 3: Cross multiply
    143,192.16x = 197,595.18 × 82,715.40
  4. Step 4: Simplify right side
    143,192.16x = 16,344,164,351.77
  5. Step 5: Solve for x
    x = 16,344,164,351.77/143,192.16
  6. Step 6: Final answer
    x = 114,141.48

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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.