Home / 136,163.04-187,877.16-79,563.48

Finding the Fourth Proportional to 136,163.04, 187,877.16 and 79,563.48

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Solution

The fourth proportional to 136,163.04, 187,877.16 and 79,563.48 is: 109,781.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,163.04 : 187,877.16 = 79,563.48 : x
  2. Step 2: Convert to fraction form
    136,163.04/187,877.16 = 79,563.48/x
  3. Step 3: Cross multiply
    136,163.04x = 187,877.16 × 79,563.48
  4. Step 4: Simplify right side
    136,163.04x = 14,948,160,662.12
  5. Step 5: Solve for x
    x = 14,948,160,662.12/136,163.04
  6. Step 6: Final answer
    x = 109,781.34

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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.