Home / 136,766.67-188,730.32-76,341.21

Finding the Fourth Proportional to 136,766.67, 188,730.32 and 76,341.21

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Solution

The fourth proportional to 136,766.67, 188,730.32 and 76,341.21 is: 105,346.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,766.67 : 188,730.32 = 76,341.21 : x
  2. Step 2: Convert to fraction form
    136,766.67/188,730.32 = 76,341.21/x
  3. Step 3: Cross multiply
    136,766.67x = 188,730.32 × 76,341.21
  4. Step 4: Simplify right side
    136,766.67x = 14,407,900,992.49
  5. Step 5: Solve for x
    x = 14,407,900,992.49/136,766.67
  6. Step 6: Final answer
    x = 105,346.58

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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.