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Finding the Fourth Proportional to 109,484.88, 151,090.20 and 64,189.68

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Solution

The fourth proportional to 109,484.88, 151,090.20 and 64,189.68 is: 88,582.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,484.88 : 151,090.20 = 64,189.68 : x
  2. Step 2: Convert to fraction form
    109,484.88/151,090.20 = 64,189.68/x
  3. Step 3: Cross multiply
    109,484.88x = 151,090.20 × 64,189.68
  4. Step 4: Simplify right side
    109,484.88x = 9,698,431,589.14
  5. Step 5: Solve for x
    x = 9,698,431,589.14/109,484.88
  6. Step 6: Final answer
    x = 88,582.38

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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.