Home / 130,188.58-179,651.76-72,817.97

Finding the Fourth Proportional to 130,188.58, 179,651.76 and 72,817.97

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Solution

The fourth proportional to 130,188.58, 179,651.76 and 72,817.97 is: 100,484.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,188.58 : 179,651.76 = 72,817.97 : x
  2. Step 2: Convert to fraction form
    130,188.58/179,651.76 = 72,817.97/x
  3. Step 3: Cross multiply
    130,188.58x = 179,651.76 × 72,817.97
  4. Step 4: Simplify right side
    130,188.58x = 13,081,875,571.87
  5. Step 5: Solve for x
    x = 13,081,875,571.87/130,188.58
  6. Step 6: Final answer
    x = 100,484.05

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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.