Home / 129,813.03-179,134.74-73,220.76

Finding the Fourth Proportional to 129,813.03, 179,134.74 and 73,220.76

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Solution

The fourth proportional to 129,813.03, 179,134.74 and 73,220.76 is: 101,040.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,813.03 : 179,134.74 = 73,220.76 : x
  2. Step 2: Convert to fraction form
    129,813.03/179,134.74 = 73,220.76/x
  3. Step 3: Cross multiply
    129,813.03x = 179,134.74 × 73,220.76
  4. Step 4: Simplify right side
    129,813.03x = 13,116,381,805.20
  5. Step 5: Solve for x
    x = 13,116,381,805.20/129,813.03
  6. Step 6: Final answer
    x = 101,040.56

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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.