Home / 136,696.30-188,640.63-76,263.35

Finding the Fourth Proportional to 136,696.30, 188,640.63 and 76,263.35

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Solution

The fourth proportional to 136,696.30, 188,640.63 and 76,263.35 is: 105,243.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,696.30 : 188,640.63 = 76,263.35 : x
  2. Step 2: Convert to fraction form
    136,696.30/188,640.63 = 76,263.35/x
  3. Step 3: Cross multiply
    136,696.30x = 188,640.63 × 76,263.35
  4. Step 4: Simplify right side
    136,696.30x = 14,386,365,446.71
  5. Step 5: Solve for x
    x = 14,386,365,446.71/136,696.30
  6. Step 6: Final answer
    x = 105,243.27

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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.