Home / 126,587.99-174,532.65-81,185.87

Finding the Fourth Proportional to 126,587.99, 174,532.65 and 81,185.87

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Solution

The fourth proportional to 126,587.99, 174,532.65 and 81,185.87 is: 111,934.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,587.99 : 174,532.65 = 81,185.87 : x
  2. Step 2: Convert to fraction form
    126,587.99/174,532.65 = 81,185.87/x
  3. Step 3: Cross multiply
    126,587.99x = 174,532.65 × 81,185.87
  4. Step 4: Simplify right side
    126,587.99x = 14,169,585,033.66
  5. Step 5: Solve for x
    x = 14,169,585,033.66/126,587.99
  6. Step 6: Final answer
    x = 111,934.67

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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.