Home / 128,748.68-193,057.14-53,848.34

Finding the Fourth Proportional to 128,748.68, 193,057.14 and 53,848.34

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Solution

The fourth proportional to 128,748.68, 193,057.14 and 53,848.34 is: 80,744.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,748.68 : 193,057.14 = 53,848.34 : x
  2. Step 2: Convert to fraction form
    128,748.68/193,057.14 = 53,848.34/x
  3. Step 3: Cross multiply
    128,748.68x = 193,057.14 × 53,848.34
  4. Step 4: Simplify right side
    128,748.68x = 10,395,806,514.15
  5. Step 5: Solve for x
    x = 10,395,806,514.15/128,748.68
  6. Step 6: Final answer
    x = 80,744.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.