Home / 129,865.86-179,215.02-73,282.50

Finding the Fourth Proportional to 129,865.86, 179,215.02 and 73,282.50

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Solution

The fourth proportional to 129,865.86, 179,215.02 and 73,282.50 is: 101,129.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,865.86 : 179,215.02 = 73,282.50 : x
  2. Step 2: Convert to fraction form
    129,865.86/179,215.02 = 73,282.50/x
  3. Step 3: Cross multiply
    129,865.86x = 179,215.02 × 73,282.50
  4. Step 4: Simplify right side
    129,865.86x = 13,133,324,703.15
  5. Step 5: Solve for x
    x = 13,133,324,703.15/129,865.86
  6. Step 6: Final answer
    x = 101,129.93

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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.