Home / 145,009.07-200,067.64-84,536.90

Finding the Fourth Proportional to 145,009.07, 200,067.64 and 84,536.90

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Solution

The fourth proportional to 145,009.07, 200,067.64 and 84,536.90 is: 116,634.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,009.07 : 200,067.64 = 84,536.90 : x
  2. Step 2: Convert to fraction form
    145,009.07/200,067.64 = 84,536.90/x
  3. Step 3: Cross multiply
    145,009.07x = 200,067.64 × 84,536.90
  4. Step 4: Simplify right side
    145,009.07x = 16,913,097,614.49
  5. Step 5: Solve for x
    x = 16,913,097,614.49/145,009.07
  6. Step 6: Final answer
    x = 116,634.76

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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.