Home / 126,739.23-174,900.35-69,378.58

Finding the Fourth Proportional to 126,739.23, 174,900.35 and 69,378.58

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Solution

The fourth proportional to 126,739.23, 174,900.35 and 69,378.58 is: 95,742.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,739.23 : 174,900.35 = 69,378.58 : x
  2. Step 2: Convert to fraction form
    126,739.23/174,900.35 = 69,378.58/x
  3. Step 3: Cross multiply
    126,739.23x = 174,900.35 × 69,378.58
  4. Step 4: Simplify right side
    126,739.23x = 12,134,338,857.26
  5. Step 5: Solve for x
    x = 12,134,338,857.26/126,739.23
  6. Step 6: Final answer
    x = 95,742.57

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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.