Home / 118,758.40-178,137.61-30,012.16

Finding the Fourth Proportional to 118,758.40, 178,137.61 and 30,012.16

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Solution

The fourth proportional to 118,758.40, 178,137.61 and 30,012.16 is: 45,018.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,758.40 : 178,137.61 = 30,012.16 : x
  2. Step 2: Convert to fraction form
    118,758.40/178,137.61 = 30,012.16/x
  3. Step 3: Cross multiply
    118,758.40x = 178,137.61 × 30,012.16
  4. Step 4: Simplify right side
    118,758.40x = 5,346,294,453.34
  5. Step 5: Solve for x
    x = 5,346,294,453.34/118,758.40
  6. Step 6: Final answer
    x = 45,018.24

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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.