Home / 163,288.28-245,007.75-74,568.98

Finding the Fourth Proportional to 163,288.28, 245,007.75 and 74,568.98

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Solution

The fourth proportional to 163,288.28, 245,007.75 and 74,568.98 is: 111,887.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,288.28 : 245,007.75 = 74,568.98 : x
  2. Step 2: Convert to fraction form
    163,288.28/245,007.75 = 74,568.98/x
  3. Step 3: Cross multiply
    163,288.28x = 245,007.75 × 74,568.98
  4. Step 4: Simplify right side
    163,288.28x = 18,269,978,009.60
  5. Step 5: Solve for x
    x = 18,269,978,009.60/163,288.28
  6. Step 6: Final answer
    x = 111,887.87

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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.