Home / 82,192.21-123,048.09-74,312.87

Finding the Fourth Proportional to 82,192.21, 123,048.09 and 74,312.87

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Solution

The fourth proportional to 82,192.21, 123,048.09 and 74,312.87 is: 111,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,192.21 : 123,048.09 = 74,312.87 : x
  2. Step 2: Convert to fraction form
    82,192.21/123,048.09 = 74,312.87/x
  3. Step 3: Cross multiply
    82,192.21x = 123,048.09 × 74,312.87
  4. Step 4: Simplify right side
    82,192.21x = 9,144,056,100.68
  5. Step 5: Solve for x
    x = 9,144,056,100.68/82,192.21
  6. Step 6: Final answer
    x = 111,252.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.