Home / 129,953.70-179,339.09-76,277.43

Finding the Fourth Proportional to 129,953.70, 179,339.09 and 76,277.43

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Solution

The fourth proportional to 129,953.70, 179,339.09 and 76,277.43 is: 105,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,953.70 : 179,339.09 = 76,277.43 : x
  2. Step 2: Convert to fraction form
    129,953.70/179,339.09 = 76,277.43/x
  3. Step 3: Cross multiply
    129,953.70x = 179,339.09 × 76,277.43
  4. Step 4: Simplify right side
    129,953.70x = 13,679,524,502.35
  5. Step 5: Solve for x
    x = 13,679,524,502.35/129,953.70
  6. Step 6: Final answer
    x = 105,264.60

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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.