Home / 126,608.34-174,742.89-81,342.91

Finding the Fourth Proportional to 126,608.34, 174,742.89 and 81,342.91

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Solution

The fourth proportional to 126,608.34, 174,742.89 and 81,342.91 is: 112,268.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,608.34 : 174,742.89 = 81,342.91 : x
  2. Step 2: Convert to fraction form
    126,608.34/174,742.89 = 81,342.91/x
  3. Step 3: Cross multiply
    126,608.34x = 174,742.89 × 81,342.91
  4. Step 4: Simplify right side
    126,608.34x = 14,214,094,869.37
  5. Step 5: Solve for x
    x = 14,214,094,869.37/126,608.34
  6. Step 6: Final answer
    x = 112,268.23

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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.