Home / 147,619.14-203,655.78-90,932.10

Finding the Fourth Proportional to 147,619.14, 203,655.78 and 90,932.10

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Solution

The fourth proportional to 147,619.14, 203,655.78 and 90,932.10 is: 125,450.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,619.14 : 203,655.78 = 90,932.10 : x
  2. Step 2: Convert to fraction form
    147,619.14/203,655.78 = 90,932.10/x
  3. Step 3: Cross multiply
    147,619.14x = 203,655.78 × 90,932.10
  4. Step 4: Simplify right side
    147,619.14x = 18,518,847,752.54
  5. Step 5: Solve for x
    x = 18,518,847,752.54/147,619.14
  6. Step 6: Final answer
    x = 125,450.18

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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.