Home / 119,717.04-165,072.60-76,639.44

Finding the Fourth Proportional to 119,717.04, 165,072.60 and 76,639.44

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Solution

The fourth proportional to 119,717.04, 165,072.60 and 76,639.44 is: 105,674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,717.04 : 165,072.60 = 76,639.44 : x
  2. Step 2: Convert to fraction form
    119,717.04/165,072.60 = 76,639.44/x
  3. Step 3: Cross multiply
    119,717.04x = 165,072.60 × 76,639.44
  4. Step 4: Simplify right side
    119,717.04x = 12,651,071,623.34
  5. Step 5: Solve for x
    x = 12,651,071,623.34/119,717.04
  6. Step 6: Final answer
    x = 105,674.78

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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.