Home / 138,234.57-190,665.44-92,271.04

Finding the Fourth Proportional to 138,234.57, 190,665.44 and 92,271.04

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Solution

The fourth proportional to 138,234.57, 190,665.44 and 92,271.04 is: 127,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,234.57 : 190,665.44 = 92,271.04 : x
  2. Step 2: Convert to fraction form
    138,234.57/190,665.44 = 92,271.04/x
  3. Step 3: Cross multiply
    138,234.57x = 190,665.44 × 92,271.04
  4. Step 4: Simplify right side
    138,234.57x = 17,592,898,440.86
  5. Step 5: Solve for x
    x = 17,592,898,440.86/138,234.57
  6. Step 6: Final answer
    x = 127,268.44

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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.