Home / 129,743.94-179,049-76,044.18

Finding the Fourth Proportional to 129,743.94, 179,049 and 76,044.18

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Solution

The fourth proportional to 129,743.94, 179,049 and 76,044.18 is: 104,942.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,743.94 : 179,049 = 76,044.18 : x
  2. Step 2: Convert to fraction form
    129,743.94/179,049 = 76,044.18/x
  3. Step 3: Cross multiply
    129,743.94x = 179,049 × 76,044.18
  4. Step 4: Simplify right side
    129,743.94x = 13,615,634,384.82
  5. Step 5: Solve for x
    x = 13,615,634,384.82/129,743.94
  6. Step 6: Final answer
    x = 104,942.35

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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.