Home / 117,920.61-162,730.63-64,205.84

Finding the Fourth Proportional to 117,920.61, 162,730.63 and 64,205.84

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Solution

The fourth proportional to 117,920.61, 162,730.63 and 64,205.84 is: 88,604.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,920.61 : 162,730.63 = 64,205.84 : x
  2. Step 2: Convert to fraction form
    117,920.61/162,730.63 = 64,205.84/x
  3. Step 3: Cross multiply
    117,920.61x = 162,730.63 × 64,205.84
  4. Step 4: Simplify right side
    117,920.61x = 10,448,256,912.57
  5. Step 5: Solve for x
    x = 10,448,256,912.57/117,920.61
  6. Step 6: Final answer
    x = 88,604.16

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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.