Home / 140,330.72-193,659.18-76,672.46

Finding the Fourth Proportional to 140,330.72, 193,659.18 and 76,672.46

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Solution

The fourth proportional to 140,330.72, 193,659.18 and 76,672.46 is: 105,809.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,330.72 : 193,659.18 = 76,672.46 : x
  2. Step 2: Convert to fraction form
    140,330.72/193,659.18 = 76,672.46/x
  3. Step 3: Cross multiply
    140,330.72x = 193,659.18 × 76,672.46
  4. Step 4: Simplify right side
    140,330.72x = 14,848,325,732.18
  5. Step 5: Solve for x
    x = 14,848,325,732.18/140,330.72
  6. Step 6: Final answer
    x = 105,809.52

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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.