Home / 126,854.83-174,975.29-81,590.09

Finding the Fourth Proportional to 126,854.83, 174,975.29 and 81,590.09

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Solution

The fourth proportional to 126,854.83, 174,975.29 and 81,590.09 is: 112,540.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,854.83 : 174,975.29 = 81,590.09 : x
  2. Step 2: Convert to fraction form
    126,854.83/174,975.29 = 81,590.09/x
  3. Step 3: Cross multiply
    126,854.83x = 174,975.29 × 81,590.09
  4. Step 4: Simplify right side
    126,854.83x = 14,276,249,658.88
  5. Step 5: Solve for x
    x = 14,276,249,658.88/126,854.83
  6. Step 6: Final answer
    x = 112,540.06

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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.