Home / 107,420.77-161,133.86-28,534.87

Finding the Fourth Proportional to 107,420.77, 161,133.86 and 28,534.87

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Solution

The fourth proportional to 107,420.77, 161,133.86 and 28,534.87 is: 42,803.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,420.77 : 161,133.86 = 28,534.87 : x
  2. Step 2: Convert to fraction form
    107,420.77/161,133.86 = 28,534.87/x
  3. Step 3: Cross multiply
    107,420.77x = 161,133.86 × 28,534.87
  4. Step 4: Simplify right side
    107,420.77x = 4,597,933,747.70
  5. Step 5: Solve for x
    x = 4,597,933,747.70/107,420.77
  6. Step 6: Final answer
    x = 42,803.02

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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.