Home / 118,901.11-178,357.95-30,155.41

Finding the Fourth Proportional to 118,901.11, 178,357.95 and 30,155.41

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Solution

The fourth proportional to 118,901.11, 178,357.95 and 30,155.41 is: 45,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,901.11 : 178,357.95 = 30,155.41 : x
  2. Step 2: Convert to fraction form
    118,901.11/178,357.95 = 30,155.41/x
  3. Step 3: Cross multiply
    118,901.11x = 178,357.95 × 30,155.41
  4. Step 4: Simplify right side
    118,901.11x = 5,378,457,109.01
  5. Step 5: Solve for x
    x = 5,378,457,109.01/118,901.11
  6. Step 6: Final answer
    x = 45,234.71

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1.5x scale

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.