Home / 100,174.56-138,251.93-63,877.34

Finding the Fourth Proportional to 100,174.56, 138,251.93 and 63,877.34

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Solution

The fourth proportional to 100,174.56, 138,251.93 and 63,877.34 is: 88,157.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,174.56 : 138,251.93 = 63,877.34 : x
  2. Step 2: Convert to fraction form
    100,174.56/138,251.93 = 63,877.34/x
  3. Step 3: Cross multiply
    100,174.56x = 138,251.93 × 63,877.34
  4. Step 4: Simplify right side
    100,174.56x = 8,831,165,538.27
  5. Step 5: Solve for x
    x = 8,831,165,538.27/100,174.56
  6. Step 6: Final answer
    x = 88,157.77

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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.