Home / 121,835.20-182,730.44-55,259.28

Finding the Fourth Proportional to 121,835.20, 182,730.44 and 55,259.28

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Solution

The fourth proportional to 121,835.20, 182,730.44 and 55,259.28 is: 82,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,835.20 : 182,730.44 = 55,259.28 : x
  2. Step 2: Convert to fraction form
    121,835.20/182,730.44 = 55,259.28/x
  3. Step 3: Cross multiply
    121,835.20x = 182,730.44 × 55,259.28
  4. Step 4: Simplify right side
    121,835.20x = 10,097,552,548.48
  5. Step 5: Solve for x
    x = 10,097,552,548.48/121,835.20
  6. Step 6: Final answer
    x = 82,878.78

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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.