Home / 151,928.40-228,031.92-77,101.68

Finding the Fourth Proportional to 151,928.40, 228,031.92 and 77,101.68

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Solution

The fourth proportional to 151,928.40, 228,031.92 and 77,101.68 is: 115,723.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,928.40 : 228,031.92 = 77,101.68 : x
  2. Step 2: Convert to fraction form
    151,928.40/228,031.92 = 77,101.68/x
  3. Step 3: Cross multiply
    151,928.40x = 228,031.92 × 77,101.68
  4. Step 4: Simplify right side
    151,928.40x = 17,581,644,125.63
  5. Step 5: Solve for x
    x = 17,581,644,125.63/151,928.40
  6. Step 6: Final answer
    x = 115,723.22

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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.