Home / 118,971.84-164,147.85-76,554.96

Finding the Fourth Proportional to 118,971.84, 164,147.85 and 76,554.96

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Solution

The fourth proportional to 118,971.84, 164,147.85 and 76,554.96 is: 105,624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,971.84 : 164,147.85 = 76,554.96 : x
  2. Step 2: Convert to fraction form
    118,971.84/164,147.85 = 76,554.96/x
  3. Step 3: Cross multiply
    118,971.84x = 164,147.85 × 76,554.96
  4. Step 4: Simplify right side
    118,971.84x = 12,566,332,090.84
  5. Step 5: Solve for x
    x = 12,566,332,090.84/118,971.84
  6. Step 6: Final answer
    x = 105,624.42

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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.