Home / 143,205.17-197,597.07-82,753.65

Finding the Fourth Proportional to 143,205.17, 197,597.07 and 82,753.65

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Solution

The fourth proportional to 143,205.17, 197,597.07 and 82,753.65 is: 114,184.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,205.17 : 197,597.07 = 82,753.65 : x
  2. Step 2: Convert to fraction form
    143,205.17/197,597.07 = 82,753.65/x
  3. Step 3: Cross multiply
    143,205.17x = 197,597.07 × 82,753.65
  4. Step 4: Simplify right side
    143,205.17x = 16,351,878,771.81
  5. Step 5: Solve for x
    x = 16,351,878,771.81/143,205.17
  6. Step 6: Final answer
    x = 114,184.98

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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.