Home / 117,929.19-162,743.31-64,214.58

Finding the Fourth Proportional to 117,929.19, 162,743.31 and 64,214.58

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Solution

The fourth proportional to 117,929.19, 162,743.31 and 64,214.58 is: 88,616.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,929.19 : 162,743.31 = 64,214.58 : x
  2. Step 2: Convert to fraction form
    117,929.19/162,743.31 = 64,214.58/x
  3. Step 3: Cross multiply
    117,929.19x = 162,743.31 × 64,214.58
  4. Step 4: Simplify right side
    117,929.19x = 10,450,493,299.46
  5. Step 5: Solve for x
    x = 10,450,493,299.46/117,929.19
  6. Step 6: Final answer
    x = 88,616.68

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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.