Home / 108,134.01-149,218.74-64,575.72

Finding the Fourth Proportional to 108,134.01, 149,218.74 and 64,575.72

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Solution

The fourth proportional to 108,134.01, 149,218.74 and 64,575.72 is: 89,110.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,134.01 : 149,218.74 = 64,575.72 : x
  2. Step 2: Convert to fraction form
    108,134.01/149,218.74 = 64,575.72/x
  3. Step 3: Cross multiply
    108,134.01x = 149,218.74 × 64,575.72
  4. Step 4: Simplify right side
    108,134.01x = 9,635,907,572.99
  5. Step 5: Solve for x
    x = 9,635,907,572.99/108,134.01
  6. Step 6: Final answer
    x = 89,110.79

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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.