Home / 117,929.57-162,742.68-64,214.96

Finding the Fourth Proportional to 117,929.57, 162,742.68 and 64,214.96

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Solution

The fourth proportional to 117,929.57, 162,742.68 and 64,214.96 is: 88,616.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,929.57 : 162,742.68 = 64,214.96 : x
  2. Step 2: Convert to fraction form
    117,929.57/162,742.68 = 64,214.96/x
  3. Step 3: Cross multiply
    117,929.57x = 162,742.68 × 64,214.96
  4. Step 4: Simplify right side
    117,929.57x = 10,450,513,872.78
  5. Step 5: Solve for x
    x = 10,450,513,872.78/117,929.57
  6. Step 6: Final answer
    x = 88,616.57

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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.