Home / 149,049.76-205,780.56-102,562.60

Finding the Fourth Proportional to 149,049.76, 205,780.56 and 102,562.60

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Solution

The fourth proportional to 149,049.76, 205,780.56 and 102,562.60 is: 141,599.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,049.76 : 205,780.56 = 102,562.60 : x
  2. Step 2: Convert to fraction form
    149,049.76/205,780.56 = 102,562.60/x
  3. Step 3: Cross multiply
    149,049.76x = 205,780.56 × 102,562.60
  4. Step 4: Simplify right side
    149,049.76x = 21,105,389,263.06
  5. Step 5: Solve for x
    x = 21,105,389,263.06/149,049.76
  6. Step 6: Final answer
    x = 141,599.62

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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.