Home / 117,971.34-162,827.62-72,046.61

Finding the Fourth Proportional to 117,971.34, 162,827.62 and 72,046.61

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Solution

The fourth proportional to 117,971.34, 162,827.62 and 72,046.61 is: 99,440.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,971.34 : 162,827.62 = 72,046.61 : x
  2. Step 2: Convert to fraction form
    117,971.34/162,827.62 = 72,046.61/x
  3. Step 3: Cross multiply
    117,971.34x = 162,827.62 × 72,046.61
  4. Step 4: Simplify right side
    117,971.34x = 11,731,178,567.62
  5. Step 5: Solve for x
    x = 11,731,178,567.62/117,971.34
  6. Step 6: Final answer
    x = 99,440.92

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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.