Home / 142,242.44-196,300.22-81,813.02

Finding the Fourth Proportional to 142,242.44, 196,300.22 and 81,813.02

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Solution

The fourth proportional to 142,242.44, 196,300.22 and 81,813.02 is: 112,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,242.44 : 196,300.22 = 81,813.02 : x
  2. Step 2: Convert to fraction form
    142,242.44/196,300.22 = 81,813.02/x
  3. Step 3: Cross multiply
    142,242.44x = 196,300.22 × 81,813.02
  4. Step 4: Simplify right side
    142,242.44x = 16,059,912,434.30
  5. Step 5: Solve for x
    x = 16,059,912,434.30/142,242.44
  6. Step 6: Final answer
    x = 112,905.21

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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.