Home / 129,803.40-179,126.64-73,213.56

Finding the Fourth Proportional to 129,803.40, 179,126.64 and 73,213.56

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Solution

The fourth proportional to 129,803.40, 179,126.64 and 73,213.56 is: 101,033.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,803.40 : 179,126.64 = 73,213.56 : x
  2. Step 2: Convert to fraction form
    129,803.40/179,126.64 = 73,213.56/x
  3. Step 3: Cross multiply
    129,803.40x = 179,126.64 × 73,213.56
  4. Step 4: Simplify right side
    129,803.40x = 13,114,499,005.24
  5. Step 5: Solve for x
    x = 13,114,499,005.24/129,803.40
  6. Step 6: Final answer
    x = 101,033.56

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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.