Home / 119,889.21-165,452.63-68,918.45

Finding the Fourth Proportional to 119,889.21, 165,452.63 and 68,918.45

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Solution

The fourth proportional to 119,889.21, 165,452.63 and 68,918.45 is: 95,110.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,889.21 : 165,452.63 = 68,918.45 : x
  2. Step 2: Convert to fraction form
    119,889.21/165,452.63 = 68,918.45/x
  3. Step 3: Cross multiply
    119,889.21x = 165,452.63 × 68,918.45
  4. Step 4: Simplify right side
    119,889.21x = 11,402,737,636.17
  5. Step 5: Solve for x
    x = 11,402,737,636.17/119,889.21
  6. Step 6: Final answer
    x = 95,110.62

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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.