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Finding the Fourth Proportional to 150,005.40, 225,008.10 and 123,739.80

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Solution

The fourth proportional to 150,005.40, 225,008.10 and 123,739.80 is: 185,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,005.40 : 225,008.10 = 123,739.80 : x
  2. Step 2: Convert to fraction form
    150,005.40/225,008.10 = 123,739.80/x
  3. Step 3: Cross multiply
    150,005.40x = 225,008.10 × 123,739.80
  4. Step 4: Simplify right side
    150,005.40x = 27,842,457,292.38
  5. Step 5: Solve for x
    x = 27,842,457,292.38/150,005.40
  6. Step 6: Final answer
    x = 185,609.70

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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.