Home / 106,804.28-147,453.86-66,572.54

Finding the Fourth Proportional to 106,804.28, 147,453.86 and 66,572.54

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Solution

The fourth proportional to 106,804.28, 147,453.86 and 66,572.54 is: 91,909.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,804.28 : 147,453.86 = 66,572.54 : x
  2. Step 2: Convert to fraction form
    106,804.28/147,453.86 = 66,572.54/x
  3. Step 3: Cross multiply
    106,804.28x = 147,453.86 × 66,572.54
  4. Step 4: Simplify right side
    106,804.28x = 9,816,377,565.43
  5. Step 5: Solve for x
    x = 9,816,377,565.43/106,804.28
  6. Step 6: Final answer
    x = 91,909.96

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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.