Home / 142,553.52-196,660.08-82,108.32

Finding the Fourth Proportional to 142,553.52, 196,660.08 and 82,108.32

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Solution

The fourth proportional to 142,553.52, 196,660.08 and 82,108.32 is: 113,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,553.52 : 196,660.08 = 82,108.32 : x
  2. Step 2: Convert to fraction form
    142,553.52/196,660.08 = 82,108.32/x
  3. Step 3: Cross multiply
    142,553.52x = 196,660.08 × 82,108.32
  4. Step 4: Simplify right side
    142,553.52x = 16,147,428,779.87
  5. Step 5: Solve for x
    x = 16,147,428,779.87/142,553.52
  6. Step 6: Final answer
    x = 113,272.75

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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.