Home / 196,458.19-271,145.06-115,905.67

Finding the Fourth Proportional to 196,458.19, 271,145.06 and 115,905.67

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Solution

The fourth proportional to 196,458.19, 271,145.06 and 115,905.67 is: 159,969.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,458.19 : 271,145.06 = 115,905.67 : x
  2. Step 2: Convert to fraction form
    196,458.19/271,145.06 = 115,905.67/x
  3. Step 3: Cross multiply
    196,458.19x = 271,145.06 × 115,905.67
  4. Step 4: Simplify right side
    196,458.19x = 31,427,249,266.96
  5. Step 5: Solve for x
    x = 31,427,249,266.96/196,458.19
  6. Step 6: Final answer
    x = 159,969.15

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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.