Home / 118,879.38-178,276.56-55,688.70

Finding the Fourth Proportional to 118,879.38, 178,276.56 and 55,688.70

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Solution

The fourth proportional to 118,879.38, 178,276.56 and 55,688.70 is: 83,513.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,879.38 : 178,276.56 = 55,688.70 : x
  2. Step 2: Convert to fraction form
    118,879.38/178,276.56 = 55,688.70/x
  3. Step 3: Cross multiply
    118,879.38x = 178,276.56 × 55,688.70
  4. Step 4: Simplify right side
    118,879.38x = 9,927,989,866.87
  5. Step 5: Solve for x
    x = 9,927,989,866.87/118,879.38
  6. Step 6: Final answer
    x = 83,513.14

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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.