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Finding the Fourth Proportional to 134,291.80, 201,109.65 and 100,830.70

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Solution

The fourth proportional to 134,291.80, 201,109.65 and 100,830.70 is: 150,999.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,291.80 : 201,109.65 = 100,830.70 : x
  2. Step 2: Convert to fraction form
    134,291.80/201,109.65 = 100,830.70/x
  3. Step 3: Cross multiply
    134,291.80x = 201,109.65 × 100,830.70
  4. Step 4: Simplify right side
    134,291.80x = 20,278,026,786.26
  5. Step 5: Solve for x
    x = 20,278,026,786.26/134,291.80
  6. Step 6: Final answer
    x = 150,999.74

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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.