Home / 151,739.68-209,421.84-84,676

Finding the Fourth Proportional to 151,739.68, 209,421.84 and 84,676

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Solution

The fourth proportional to 151,739.68, 209,421.84 and 84,676 is: 116,864.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,739.68 : 209,421.84 = 84,676 : x
  2. Step 2: Convert to fraction form
    151,739.68/209,421.84 = 84,676/x
  3. Step 3: Cross multiply
    151,739.68x = 209,421.84 × 84,676
  4. Step 4: Simplify right side
    151,739.68x = 17,733,003,723.84
  5. Step 5: Solve for x
    x = 17,733,003,723.84/151,739.68
  6. Step 6: Final answer
    x = 116,864.64

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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.