Home / 118,121.94-177,218.67-42,210.54

Finding the Fourth Proportional to 118,121.94, 177,218.67 and 42,210.54

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Solution

The fourth proportional to 118,121.94, 177,218.67 and 42,210.54 is: 63,328.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,121.94 : 177,218.67 = 42,210.54 : x
  2. Step 2: Convert to fraction form
    118,121.94/177,218.67 = 42,210.54/x
  3. Step 3: Cross multiply
    118,121.94x = 177,218.67 × 42,210.54
  4. Step 4: Simplify right side
    118,121.94x = 7,480,495,758.78
  5. Step 5: Solve for x
    x = 7,480,495,758.78/118,121.94
  6. Step 6: Final answer
    x = 63,328.59

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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.