Home / 117,664.62-162,316.35-72,874.86

Finding the Fourth Proportional to 117,664.62, 162,316.35 and 72,874.86

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Solution

The fourth proportional to 117,664.62, 162,316.35 and 72,874.86 is: 100,529.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,664.62 : 162,316.35 = 72,874.86 : x
  2. Step 2: Convert to fraction form
    117,664.62/162,316.35 = 72,874.86/x
  3. Step 3: Cross multiply
    117,664.62x = 162,316.35 × 72,874.86
  4. Step 4: Simplify right side
    117,664.62x = 11,828,781,281.96
  5. Step 5: Solve for x
    x = 11,828,781,281.96/117,664.62
  6. Step 6: Final answer
    x = 100,529.63

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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.