Home / 118,759.40-178,139.11-30,013.16

Finding the Fourth Proportional to 118,759.40, 178,139.11 and 30,013.16

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Solution

The fourth proportional to 118,759.40, 178,139.11 and 30,013.16 is: 45,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,759.40 : 178,139.11 = 30,013.16 : x
  2. Step 2: Convert to fraction form
    118,759.40/178,139.11 = 30,013.16/x
  3. Step 3: Cross multiply
    118,759.40x = 178,139.11 × 30,013.16
  4. Step 4: Simplify right side
    118,759.40x = 5,346,517,610.69
  5. Step 5: Solve for x
    x = 5,346,517,610.69/118,759.40
  6. Step 6: Final answer
    x = 45,019.74

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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.