Home / 140,308.18-193,629.55-76,650.08

Finding the Fourth Proportional to 140,308.18, 193,629.55 and 76,650.08

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Solution

The fourth proportional to 140,308.18, 193,629.55 and 76,650.08 is: 105,779.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,308.18 : 193,629.55 = 76,650.08 : x
  2. Step 2: Convert to fraction form
    140,308.18/193,629.55 = 76,650.08/x
  3. Step 3: Cross multiply
    140,308.18x = 193,629.55 × 76,650.08
  4. Step 4: Simplify right side
    140,308.18x = 14,841,720,497.86
  5. Step 5: Solve for x
    x = 14,841,720,497.86/140,308.18
  6. Step 6: Final answer
    x = 105,779.44

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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.