Home / 132,921.51-183,433.13-72,491.67

Finding the Fourth Proportional to 132,921.51, 183,433.13 and 72,491.67

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Solution

The fourth proportional to 132,921.51, 183,433.13 and 72,491.67 is: 100,039.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,921.51 : 183,433.13 = 72,491.67 : x
  2. Step 2: Convert to fraction form
    132,921.51/183,433.13 = 72,491.67/x
  3. Step 3: Cross multiply
    132,921.51x = 183,433.13 × 72,491.67
  4. Step 4: Simplify right side
    132,921.51x = 13,297,373,564.57
  5. Step 5: Solve for x
    x = 13,297,373,564.57/132,921.51
  6. Step 6: Final answer
    x = 100,039.29

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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.