Home / 157,321.64-217,096.83-91,916.51

Finding the Fourth Proportional to 157,321.64, 217,096.83 and 91,916.51

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Solution

The fourth proportional to 157,321.64, 217,096.83 and 91,916.51 is: 126,840.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,321.64 : 217,096.83 = 91,916.51 : x
  2. Step 2: Convert to fraction form
    157,321.64/217,096.83 = 91,916.51/x
  3. Step 3: Cross multiply
    157,321.64x = 217,096.83 × 91,916.51
  4. Step 4: Simplify right side
    157,321.64x = 19,954,781,860.18
  5. Step 5: Solve for x
    x = 19,954,781,860.18/157,321.64
  6. Step 6: Final answer
    x = 126,840.67

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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.