Home / 211,642.36-292,079.59-139,897.96

Finding the Fourth Proportional to 211,642.36, 292,079.59 and 139,897.96

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Solution

The fourth proportional to 211,642.36, 292,079.59 and 139,897.96 is: 193,067.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,642.36 : 292,079.59 = 139,897.96 : x
  2. Step 2: Convert to fraction form
    211,642.36/292,079.59 = 139,897.96/x
  3. Step 3: Cross multiply
    211,642.36x = 292,079.59 × 139,897.96
  4. Step 4: Simplify right side
    211,642.36x = 40,861,338,798.64
  5. Step 5: Solve for x
    x = 40,861,338,798.64/211,642.36
  6. Step 6: Final answer
    x = 193,067.87

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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.