Home / 104,178.51-156,270.07-72,126.00

Finding the Fourth Proportional to 104,178.51, 156,270.07 and 72,126.00

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Solution

The fourth proportional to 104,178.51, 156,270.07 and 72,126.00 is: 108,190.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,178.51 : 156,270.07 = 72,126.00 : x
  2. Step 2: Convert to fraction form
    104,178.51/156,270.07 = 72,126.00/x
  3. Step 3: Cross multiply
    104,178.51x = 156,270.07 × 72,126.00
  4. Step 4: Simplify right side
    104,178.51x = 11,271,135,098.87
  5. Step 5: Solve for x
    x = 11,271,135,098.87/104,178.51
  6. Step 6: Final answer
    x = 108,190.59

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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.