Home / 140,024.31-209,848.14-76,749.54

Finding the Fourth Proportional to 140,024.31, 209,848.14 and 76,749.54

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Solution

The fourth proportional to 140,024.31, 209,848.14 and 76,749.54 is: 115,021.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,024.31 : 209,848.14 = 76,749.54 : x
  2. Step 2: Convert to fraction form
    140,024.31/209,848.14 = 76,749.54/x
  3. Step 3: Cross multiply
    140,024.31x = 209,848.14 × 76,749.54
  4. Step 4: Simplify right side
    140,024.31x = 16,105,748,214.86
  5. Step 5: Solve for x
    x = 16,105,748,214.86/140,024.31
  6. Step 6: Final answer
    x = 115,021.09

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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.