Home / 142,026.92-196,003.50-81,617.12

Finding the Fourth Proportional to 142,026.92, 196,003.50 and 81,617.12

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Solution

The fourth proportional to 142,026.92, 196,003.50 and 81,617.12 is: 112,635.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,026.92 : 196,003.50 = 81,617.12 : x
  2. Step 2: Convert to fraction form
    142,026.92/196,003.50 = 81,617.12/x
  3. Step 3: Cross multiply
    142,026.92x = 196,003.50 × 81,617.12
  4. Step 4: Simplify right side
    142,026.92x = 15,997,241,179.92
  5. Step 5: Solve for x
    x = 15,997,241,179.92/142,026.92
  6. Step 6: Final answer
    x = 112,635.27

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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.