Home / 129,775.39-179,090.04-73,186.77

Finding the Fourth Proportional to 129,775.39, 179,090.04 and 73,186.77

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Solution

The fourth proportional to 129,775.39, 179,090.04 and 73,186.77 is: 100,997.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,775.39 : 179,090.04 = 73,186.77 : x
  2. Step 2: Convert to fraction form
    129,775.39/179,090.04 = 73,186.77/x
  3. Step 3: Cross multiply
    129,775.39x = 179,090.04 × 73,186.77
  4. Step 4: Simplify right side
    129,775.39x = 13,107,021,566.77
  5. Step 5: Solve for x
    x = 13,107,021,566.77/129,775.39
  6. Step 6: Final answer
    x = 100,997.74

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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.