Home / 142,577.52-196,754.04-78,911.52

Finding the Fourth Proportional to 142,577.52, 196,754.04 and 78,911.52

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Solution

The fourth proportional to 142,577.52, 196,754.04 and 78,911.52 is: 108,896.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,577.52 : 196,754.04 = 78,911.52 : x
  2. Step 2: Convert to fraction form
    142,577.52/196,754.04 = 78,911.52/x
  3. Step 3: Cross multiply
    142,577.52x = 196,754.04 × 78,911.52
  4. Step 4: Simplify right side
    142,577.52x = 15,526,160,362.54
  5. Step 5: Solve for x
    x = 15,526,160,362.54/142,577.52
  6. Step 6: Final answer
    x = 108,896.27

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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.