Home / 126,855.34-174,975.97-81,590.58

Finding the Fourth Proportional to 126,855.34, 174,975.97 and 81,590.58

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Solution

The fourth proportional to 126,855.34, 174,975.97 and 81,590.58 is: 112,540.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,855.34 : 174,975.97 = 81,590.58 : x
  2. Step 2: Convert to fraction form
    126,855.34/174,975.97 = 81,590.58/x
  3. Step 3: Cross multiply
    126,855.34x = 174,975.97 × 81,590.58
  4. Step 4: Simplify right side
    126,855.34x = 14,276,390,878.36
  5. Step 5: Solve for x
    x = 14,276,390,878.36/126,855.34
  6. Step 6: Final answer
    x = 112,540.72

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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.