Home / 130,960.52-196,539.66-104,979

Finding the Fourth Proportional to 130,960.52, 196,539.66 and 104,979

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Solution

The fourth proportional to 130,960.52, 196,539.66 and 104,979 is: 157,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,960.52 : 196,539.66 = 104,979 : x
  2. Step 2: Convert to fraction form
    130,960.52/196,539.66 = 104,979/x
  3. Step 3: Cross multiply
    130,960.52x = 196,539.66 × 104,979
  4. Step 4: Simplify right side
    130,960.52x = 20,632,536,967.14
  5. Step 5: Solve for x
    x = 20,632,536,967.14/130,960.52
  6. Step 6: Final answer
    x = 157,547.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.