Home / 130,236.93-179,719.56-72,865.17

Finding the Fourth Proportional to 130,236.93, 179,719.56 and 72,865.17

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Solution

The fourth proportional to 130,236.93, 179,719.56 and 72,865.17 is: 100,549.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,236.93 : 179,719.56 = 72,865.17 : x
  2. Step 2: Convert to fraction form
    130,236.93/179,719.56 = 72,865.17/x
  3. Step 3: Cross multiply
    130,236.93x = 179,719.56 × 72,865.17
  4. Step 4: Simplify right side
    130,236.93x = 13,095,296,291.73
  5. Step 5: Solve for x
    x = 13,095,296,291.73/130,236.93
  6. Step 6: Final answer
    x = 100,549.79

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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.