Home / 100,593.45-138,803.85-55,273.34

Finding the Fourth Proportional to 100,593.45, 138,803.85 and 55,273.34

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Solution

The fourth proportional to 100,593.45, 138,803.85 and 55,273.34 is: 76,268.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,593.45 : 138,803.85 = 55,273.34 : x
  2. Step 2: Convert to fraction form
    100,593.45/138,803.85 = 55,273.34/x
  3. Step 3: Cross multiply
    100,593.45x = 138,803.85 × 55,273.34
  4. Step 4: Simplify right side
    100,593.45x = 7,672,152,741.37
  5. Step 5: Solve for x
    x = 7,672,152,741.37/100,593.45
  6. Step 6: Final answer
    x = 76,268.91

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1.5x scale

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.