Home / 126,855.08-174,975.64-81,590.34

Finding the Fourth Proportional to 126,855.08, 174,975.64 and 81,590.34

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Solution

The fourth proportional to 126,855.08, 174,975.64 and 81,590.34 is: 112,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,855.08 : 174,975.64 = 81,590.34 : x
  2. Step 2: Convert to fraction form
    126,855.08/174,975.64 = 81,590.34/x
  3. Step 3: Cross multiply
    126,855.08x = 174,975.64 × 81,590.34
  4. Step 4: Simplify right side
    126,855.08x = 14,276,321,551.37
  5. Step 5: Solve for x
    x = 14,276,321,551.37/126,855.08
  6. Step 6: Final answer
    x = 112,540.40

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1.5x scale

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.