Home / 136,144.60-204,065.56-102,756.40

Finding the Fourth Proportional to 136,144.60, 204,065.56 and 102,756.40

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Solution

The fourth proportional to 136,144.60, 204,065.56 and 102,756.40 is: 154,020.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,144.60 : 204,065.56 = 102,756.40 : x
  2. Step 2: Convert to fraction form
    136,144.60/204,065.56 = 102,756.40/x
  3. Step 3: Cross multiply
    136,144.60x = 204,065.56 × 102,756.40
  4. Step 4: Simplify right side
    136,144.60x = 20,969,041,927.87
  5. Step 5: Solve for x
    x = 20,969,041,927.87/136,144.60
  6. Step 6: Final answer
    x = 154,020.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.