Home / 118,901.72-178,352.20-30,155.01

Finding the Fourth Proportional to 118,901.72, 178,352.20 and 30,155.01

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Solution

The fourth proportional to 118,901.72, 178,352.20 and 30,155.01 is: 45,232.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,901.72 : 178,352.20 = 30,155.01 : x
  2. Step 2: Convert to fraction form
    118,901.72/178,352.20 = 30,155.01/x
  3. Step 3: Cross multiply
    118,901.72x = 178,352.20 × 30,155.01
  4. Step 4: Simplify right side
    118,901.72x = 5,378,212,329.82
  5. Step 5: Solve for x
    x = 5,378,212,329.82/118,901.72
  6. Step 6: Final answer
    x = 45,232.42

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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.