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Finding the Fourth Proportional to 130,604.76, 180,209.88 and 123,961.14

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Solution

The fourth proportional to 130,604.76, 180,209.88 and 123,961.14 is: 171,042.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,604.76 : 180,209.88 = 123,961.14 : x
  2. Step 2: Convert to fraction form
    130,604.76/180,209.88 = 123,961.14/x
  3. Step 3: Cross multiply
    130,604.76x = 180,209.88 × 123,961.14
  4. Step 4: Simplify right side
    130,604.76x = 22,339,022,164.06
  5. Step 5: Solve for x
    x = 22,339,022,164.06/130,604.76
  6. Step 6: Final answer
    x = 171,042.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.