Home / 142,573.54-196,800.64-82,168.30

Finding the Fourth Proportional to 142,573.54, 196,800.64 and 82,168.30

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Solution

The fourth proportional to 142,573.54, 196,800.64 and 82,168.30 is: 113,420.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,573.54 : 196,800.64 = 82,168.30 : x
  2. Step 2: Convert to fraction form
    142,573.54/196,800.64 = 82,168.30/x
  3. Step 3: Cross multiply
    142,573.54x = 196,800.64 × 82,168.30
  4. Step 4: Simplify right side
    142,573.54x = 16,170,774,027.71
  5. Step 5: Solve for x
    x = 16,170,774,027.71/142,573.54
  6. Step 6: Final answer
    x = 113,420.58

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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.