Home / 130,015.92-178,733.12-111,799.94

Finding the Fourth Proportional to 130,015.92, 178,733.12 and 111,799.94

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Solution

The fourth proportional to 130,015.92, 178,733.12 and 111,799.94 is: 153,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,015.92 : 178,733.12 = 111,799.94 : x
  2. Step 2: Convert to fraction form
    130,015.92/178,733.12 = 111,799.94/x
  3. Step 3: Cross multiply
    130,015.92x = 178,733.12 × 111,799.94
  4. Step 4: Simplify right side
    130,015.92x = 19,982,350,639.35
  5. Step 5: Solve for x
    x = 19,982,350,639.35/130,015.92
  6. Step 6: Final answer
    x = 153,691.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.