Home / 136,433.18-188,291.64-76,013.66

Finding the Fourth Proportional to 136,433.18, 188,291.64 and 76,013.66

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Solution

The fourth proportional to 136,433.18, 188,291.64 and 76,013.66 is: 104,906.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,433.18 : 188,291.64 = 76,013.66 : x
  2. Step 2: Convert to fraction form
    136,433.18/188,291.64 = 76,013.66/x
  3. Step 3: Cross multiply
    136,433.18x = 188,291.64 × 76,013.66
  4. Step 4: Simplify right side
    136,433.18x = 14,312,735,762.34
  5. Step 5: Solve for x
    x = 14,312,735,762.34/136,433.18
  6. Step 6: Final answer
    x = 104,906.57

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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.