Home / 107,128.59-147,833.19-58,729.47

Finding the Fourth Proportional to 107,128.59, 147,833.19 and 58,729.47

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Solution

The fourth proportional to 107,128.59, 147,833.19 and 58,729.47 is: 81,044.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,128.59 : 147,833.19 = 58,729.47 : x
  2. Step 2: Convert to fraction form
    107,128.59/147,833.19 = 58,729.47/x
  3. Step 3: Cross multiply
    107,128.59x = 147,833.19 × 58,729.47
  4. Step 4: Simplify right side
    107,128.59x = 8,682,164,897.11
  5. Step 5: Solve for x
    x = 8,682,164,897.11/107,128.59
  6. Step 6: Final answer
    x = 81,044.33

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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.