Home / 129,760.89-179,102.66-73,205.07

Finding the Fourth Proportional to 129,760.89, 179,102.66 and 73,205.07

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Solution

The fourth proportional to 129,760.89, 179,102.66 and 73,205.07 is: 101,041.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,760.89 : 179,102.66 = 73,205.07 : x
  2. Step 2: Convert to fraction form
    129,760.89/179,102.66 = 73,205.07/x
  3. Step 3: Cross multiply
    129,760.89x = 179,102.66 × 73,205.07
  4. Step 4: Simplify right side
    129,760.89x = 13,111,222,396.46
  5. Step 5: Solve for x
    x = 13,111,222,396.46/129,760.89
  6. Step 6: Final answer
    x = 101,041.40

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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.