Home / 100,383.24-138,526.80-62,132.64

Finding the Fourth Proportional to 100,383.24, 138,526.80 and 62,132.64

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Solution

The fourth proportional to 100,383.24, 138,526.80 and 62,132.64 is: 85,741.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,383.24 : 138,526.80 = 62,132.64 : x
  2. Step 2: Convert to fraction form
    100,383.24/138,526.80 = 62,132.64/x
  3. Step 3: Cross multiply
    100,383.24x = 138,526.80 × 62,132.64
  4. Step 4: Simplify right side
    100,383.24x = 8,607,035,794.75
  5. Step 5: Solve for x
    x = 8,607,035,794.75/100,383.24
  6. Step 6: Final answer
    x = 85,741.76

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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.