Home / 126,580.74-174,522.65-81,178.62

Finding the Fourth Proportional to 126,580.74, 174,522.65 and 81,178.62

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Solution

The fourth proportional to 126,580.74, 174,522.65 and 81,178.62 is: 111,924.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,580.74 : 174,522.65 = 81,178.62 : x
  2. Step 2: Convert to fraction form
    126,580.74/174,522.65 = 81,178.62/x
  3. Step 3: Cross multiply
    126,580.74x = 174,522.65 × 81,178.62
  4. Step 4: Simplify right side
    126,580.74x = 14,167,507,479.85
  5. Step 5: Solve for x
    x = 14,167,507,479.85/126,580.74
  6. Step 6: Final answer
    x = 111,924.67

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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.