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Finding the Fourth Proportional to 117,618.80, 176,233.80 and 100,900.40

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Solution

The fourth proportional to 117,618.80, 176,233.80 and 100,900.40 is: 151,183.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,618.80 : 176,233.80 = 100,900.40 : x
  2. Step 2: Convert to fraction form
    117,618.80/176,233.80 = 100,900.40/x
  3. Step 3: Cross multiply
    117,618.80x = 176,233.80 × 100,900.40
  4. Step 4: Simplify right side
    117,618.80x = 17,782,060,913.52
  5. Step 5: Solve for x
    x = 17,782,060,913.52/117,618.80
  6. Step 6: Final answer
    x = 151,183.83

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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.