Home / 129,744.06-179,005.59-76,011.90

Finding the Fourth Proportional to 129,744.06, 179,005.59 and 76,011.90

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Solution

The fourth proportional to 129,744.06, 179,005.59 and 76,011.90 is: 104,872.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,744.06 : 179,005.59 = 76,011.90 : x
  2. Step 2: Convert to fraction form
    129,744.06/179,005.59 = 76,011.90/x
  3. Step 3: Cross multiply
    129,744.06x = 179,005.59 × 76,011.90
  4. Step 4: Simplify right side
    129,744.06x = 13,606,555,006.52
  5. Step 5: Solve for x
    x = 13,606,555,006.52/129,744.06
  6. Step 6: Final answer
    x = 104,872.28

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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.