Home / 136,526.24-188,405.78-76,096.20

Finding the Fourth Proportional to 136,526.24, 188,405.78 and 76,096.20

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Solution

The fourth proportional to 136,526.24, 188,405.78 and 76,096.20 is: 105,012.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,526.24 : 188,405.78 = 76,096.20 : x
  2. Step 2: Convert to fraction form
    136,526.24/188,405.78 = 76,096.20/x
  3. Step 3: Cross multiply
    136,526.24x = 188,405.78 × 76,096.20
  4. Step 4: Simplify right side
    136,526.24x = 14,336,963,916.04
  5. Step 5: Solve for x
    x = 14,336,963,916.04/136,526.24
  6. Step 6: Final answer
    x = 105,012.52

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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.