Home / 140,575.96-193,999.65-76,913.74

Finding the Fourth Proportional to 140,575.96, 193,999.65 and 76,913.74

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Solution

The fourth proportional to 140,575.96, 193,999.65 and 76,913.74 is: 106,143.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,575.96 : 193,999.65 = 76,913.74 : x
  2. Step 2: Convert to fraction form
    140,575.96/193,999.65 = 76,913.74/x
  3. Step 3: Cross multiply
    140,575.96x = 193,999.65 × 76,913.74
  4. Step 4: Simplify right side
    140,575.96x = 14,921,238,640.19
  5. Step 5: Solve for x
    x = 14,921,238,640.19/140,575.96
  6. Step 6: Final answer
    x = 106,143.60

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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.