Home / 102,356.20-153,620.70-49,810.60

Finding the Fourth Proportional to 102,356.20, 153,620.70 and 49,810.60

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Solution

The fourth proportional to 102,356.20, 153,620.70 and 49,810.60 is: 74,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,356.20 : 153,620.70 = 49,810.60 : x
  2. Step 2: Convert to fraction form
    102,356.20/153,620.70 = 49,810.60/x
  3. Step 3: Cross multiply
    102,356.20x = 153,620.70 × 49,810.60
  4. Step 4: Simplify right side
    102,356.20x = 7,651,939,239.42
  5. Step 5: Solve for x
    x = 7,651,939,239.42/102,356.20
  6. Step 6: Final answer
    x = 74,757.95

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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.