Home / 142,194.32-196,226.52-77,663.24

Finding the Fourth Proportional to 142,194.32, 196,226.52 and 77,663.24

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Solution

The fourth proportional to 142,194.32, 196,226.52 and 77,663.24 is: 107,174.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,194.32 : 196,226.52 = 77,663.24 : x
  2. Step 2: Convert to fraction form
    142,194.32/196,226.52 = 77,663.24/x
  3. Step 3: Cross multiply
    142,194.32x = 196,226.52 × 77,663.24
  4. Step 4: Simplify right side
    142,194.32x = 15,239,587,317.12
  5. Step 5: Solve for x
    x = 15,239,587,317.12/142,194.32
  6. Step 6: Final answer
    x = 107,174.37

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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.