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Finding the Fourth Proportional to 118,900.38, 178,348.77 and 28,943.76

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Solution

The fourth proportional to 118,900.38, 178,348.77 and 28,943.76 is: 43,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,900.38 : 178,348.77 = 28,943.76 : x
  2. Step 2: Convert to fraction form
    118,900.38/178,348.77 = 28,943.76/x
  3. Step 3: Cross multiply
    118,900.38x = 178,348.77 × 28,943.76
  4. Step 4: Simplify right side
    118,900.38x = 5,162,083,995.18
  5. Step 5: Solve for x
    x = 5,162,083,995.18/118,900.38
  6. Step 6: Final answer
    x = 43,415.20

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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.