Home / 236,709.48-355,067.28-78,937.92

Finding the Fourth Proportional to 236,709.48, 355,067.28 and 78,937.92

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Solution

The fourth proportional to 236,709.48, 355,067.28 and 78,937.92 is: 118,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,709.48 : 355,067.28 = 78,937.92 : x
  2. Step 2: Convert to fraction form
    236,709.48/355,067.28 = 78,937.92/x
  3. Step 3: Cross multiply
    236,709.48x = 355,067.28 × 78,937.92
  4. Step 4: Simplify right side
    236,709.48x = 28,028,272,543.26
  5. Step 5: Solve for x
    x = 28,028,272,543.26/236,709.48
  6. Step 6: Final answer
    x = 118,407.90

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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.