Home / 129,808.01-179,134.95-73,219.38

Finding the Fourth Proportional to 129,808.01, 179,134.95 and 73,219.38

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Solution

The fourth proportional to 129,808.01, 179,134.95 and 73,219.38 is: 101,042.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,808.01 : 179,134.95 = 73,219.38 : x
  2. Step 2: Convert to fraction form
    129,808.01/179,134.95 = 73,219.38/x
  3. Step 3: Cross multiply
    129,808.01x = 179,134.95 × 73,219.38
  4. Step 4: Simplify right side
    129,808.01x = 13,116,149,975.33
  5. Step 5: Solve for x
    x = 13,116,149,975.33/129,808.01
  6. Step 6: Final answer
    x = 101,042.69

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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.