Home / 142,890.40-196,609.26-117,302.68

Finding the Fourth Proportional to 142,890.40, 196,609.26 and 117,302.68

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Solution

The fourth proportional to 142,890.40, 196,609.26 and 117,302.68 is: 161,401.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,890.40 : 196,609.26 = 117,302.68 : x
  2. Step 2: Convert to fraction form
    142,890.40/196,609.26 = 117,302.68/x
  3. Step 3: Cross multiply
    142,890.40x = 196,609.26 × 117,302.68
  4. Step 4: Simplify right side
    142,890.40x = 23,062,793,110.82
  5. Step 5: Solve for x
    x = 23,062,793,110.82/142,890.40
  6. Step 6: Final answer
    x = 161,401.98

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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.