Home / 120,784.20-166,655.32-73,036.52

Finding the Fourth Proportional to 120,784.20, 166,655.32 and 73,036.52

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Solution

The fourth proportional to 120,784.20, 166,655.32 and 73,036.52 is: 100,774.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,784.20 : 166,655.32 = 73,036.52 : x
  2. Step 2: Convert to fraction form
    120,784.20/166,655.32 = 73,036.52/x
  3. Step 3: Cross multiply
    120,784.20x = 166,655.32 × 73,036.52
  4. Step 4: Simplify right side
    120,784.20x = 12,171,924,612.29
  5. Step 5: Solve for x
    x = 12,171,924,612.29/120,784.20
  6. Step 6: Final answer
    x = 100,774.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.