Home / 100,346.76-138,476.93-55,025.15

Finding the Fourth Proportional to 100,346.76, 138,476.93 and 55,025.15

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Solution

The fourth proportional to 100,346.76, 138,476.93 and 55,025.15 is: 75,933.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,346.76 : 138,476.93 = 55,025.15 : x
  2. Step 2: Convert to fraction form
    100,346.76/138,476.93 = 55,025.15/x
  3. Step 3: Cross multiply
    100,346.76x = 138,476.93 × 55,025.15
  4. Step 4: Simplify right side
    100,346.76x = 7,619,712,877.28
  5. Step 5: Solve for x
    x = 7,619,712,877.28/100,346.76
  6. Step 6: Final answer
    x = 75,933.82

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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.