Home / 100,419.52-138,574.26-55,096.48

Finding the Fourth Proportional to 100,419.52, 138,574.26 and 55,096.48

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Solution

The fourth proportional to 100,419.52, 138,574.26 and 55,096.48 is: 76,030.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,419.52 : 138,574.26 = 55,096.48 : x
  2. Step 2: Convert to fraction form
    100,419.52/138,574.26 = 55,096.48/x
  3. Step 3: Cross multiply
    100,419.52x = 138,574.26 × 55,096.48
  4. Step 4: Simplify right side
    100,419.52x = 7,634,953,944.60
  5. Step 5: Solve for x
    x = 7,634,953,944.60/100,419.52
  6. Step 6: Final answer
    x = 76,030.58

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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.