Home / 126,527.83-174,489.06-81,219.67

Finding the Fourth Proportional to 126,527.83, 174,489.06 and 81,219.67

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Solution

The fourth proportional to 126,527.83, 174,489.06 and 81,219.67 is: 112,006.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,527.83 : 174,489.06 = 81,219.67 : x
  2. Step 2: Convert to fraction form
    126,527.83/174,489.06 = 81,219.67/x
  3. Step 3: Cross multiply
    126,527.83x = 174,489.06 × 81,219.67
  4. Step 4: Simplify right side
    126,527.83x = 14,171,943,871.81
  5. Step 5: Solve for x
    x = 14,171,943,871.81/126,527.83
  6. Step 6: Final answer
    x = 112,006.54

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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.