Home / 129,778.29-179,094.02-73,189.67

Finding the Fourth Proportional to 129,778.29, 179,094.02 and 73,189.67

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Solution

The fourth proportional to 129,778.29, 179,094.02 and 73,189.67 is: 101,001.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,778.29 : 179,094.02 = 73,189.67 : x
  2. Step 2: Convert to fraction form
    129,778.29/179,094.02 = 73,189.67/x
  3. Step 3: Cross multiply
    129,778.29x = 179,094.02 × 73,189.67
  4. Step 4: Simplify right side
    129,778.29x = 13,107,830,961.36
  5. Step 5: Solve for x
    x = 13,107,830,961.36/129,778.29
  6. Step 6: Final answer
    x = 101,001.72

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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.