Home / 117,878.46-162,675.82-72,582.58

Finding the Fourth Proportional to 117,878.46, 162,675.82 and 72,582.58

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Solution

The fourth proportional to 117,878.46, 162,675.82 and 72,582.58 is: 100,166.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,878.46 : 162,675.82 = 72,582.58 : x
  2. Step 2: Convert to fraction form
    117,878.46/162,675.82 = 72,582.58/x
  3. Step 3: Cross multiply
    117,878.46x = 162,675.82 × 72,582.58
  4. Step 4: Simplify right side
    117,878.46x = 11,807,430,719.22
  5. Step 5: Solve for x
    x = 11,807,430,719.22/117,878.46
  6. Step 6: Final answer
    x = 100,166.14

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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.