Home / 117,451.68-162,036.24-67,140

Finding the Fourth Proportional to 117,451.68, 162,036.24 and 67,140

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Solution

The fourth proportional to 117,451.68, 162,036.24 and 67,140 is: 92,626.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,451.68 : 162,036.24 = 67,140 : x
  2. Step 2: Convert to fraction form
    117,451.68/162,036.24 = 67,140/x
  3. Step 3: Cross multiply
    117,451.68x = 162,036.24 × 67,140
  4. Step 4: Simplify right side
    117,451.68x = 10,879,113,153.60
  5. Step 5: Solve for x
    x = 10,879,113,153.60/117,451.68
  6. Step 6: Final answer
    x = 92,626.29

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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.