Home / 76,784.98-115,178.19-75,152.02

Finding the Fourth Proportional to 76,784.98, 115,178.19 and 75,152.02

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Solution

The fourth proportional to 76,784.98, 115,178.19 and 75,152.02 is: 112,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,784.98 : 115,178.19 = 75,152.02 : x
  2. Step 2: Convert to fraction form
    76,784.98/115,178.19 = 75,152.02/x
  3. Step 3: Cross multiply
    76,784.98x = 115,178.19 × 75,152.02
  4. Step 4: Simplify right side
    76,784.98x = 8,655,873,638.44
  5. Step 5: Solve for x
    x = 8,655,873,638.44/76,784.98
  6. Step 6: Final answer
    x = 112,728.73

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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.