Home / 129,736.84-179,036.76-70,120.84

Finding the Fourth Proportional to 129,736.84, 179,036.76 and 70,120.84

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Solution

The fourth proportional to 129,736.84, 179,036.76 and 70,120.84 is: 96,766.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,736.84 : 179,036.76 = 70,120.84 : x
  2. Step 2: Convert to fraction form
    129,736.84/179,036.76 = 70,120.84/x
  3. Step 3: Cross multiply
    129,736.84x = 179,036.76 × 70,120.84
  4. Step 4: Simplify right side
    129,736.84x = 12,554,208,002.08
  5. Step 5: Solve for x
    x = 12,554,208,002.08/129,736.84
  6. Step 6: Final answer
    x = 96,766.72

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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.