Home / 126,973.39-190,697.12-111,781.33

Finding the Fourth Proportional to 126,973.39, 190,697.12 and 111,781.33

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Solution

The fourth proportional to 126,973.39, 190,697.12 and 111,781.33 is: 167,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,973.39 : 190,697.12 = 111,781.33 : x
  2. Step 2: Convert to fraction form
    126,973.39/190,697.12 = 111,781.33/x
  3. Step 3: Cross multiply
    126,973.39x = 190,697.12 × 111,781.33
  4. Step 4: Simplify right side
    126,973.39x = 21,316,377,700.77
  5. Step 5: Solve for x
    x = 21,316,377,700.77/126,973.39
  6. Step 6: Final answer
    x = 167,880.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.