Home / 140,398.20-193,749.96-76,737.04

Finding the Fourth Proportional to 140,398.20, 193,749.96 and 76,737.04

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Solution

The fourth proportional to 140,398.20, 193,749.96 and 76,737.04 is: 105,897.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,398.20 : 193,749.96 = 76,737.04 : x
  2. Step 2: Convert to fraction form
    140,398.20/193,749.96 = 76,737.04/x
  3. Step 3: Cross multiply
    140,398.20x = 193,749.96 × 76,737.04
  4. Step 4: Simplify right side
    140,398.20x = 14,867,798,430.52
  5. Step 5: Solve for x
    x = 14,867,798,430.52/140,398.20
  6. Step 6: Final answer
    x = 105,897.36

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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.