Home / 515,979.64-773,973.78-142,023.16

Finding the Fourth Proportional to 515,979.64, 773,973.78 and 142,023.16

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Solution

The fourth proportional to 515,979.64, 773,973.78 and 142,023.16 is: 213,035.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,979.64 : 773,973.78 = 142,023.16 : x
  2. Step 2: Convert to fraction form
    515,979.64/773,973.78 = 142,023.16/x
  3. Step 3: Cross multiply
    515,979.64x = 773,973.78 × 142,023.16
  4. Step 4: Simplify right side
    515,979.64x = 109,922,201,992.75
  5. Step 5: Solve for x
    x = 109,922,201,992.75/515,979.64
  6. Step 6: Final answer
    x = 213,035.93

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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.