Home / 185,562.48-278,209.77-78,887.91

Finding the Fourth Proportional to 185,562.48, 278,209.77 and 78,887.91

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Solution

The fourth proportional to 185,562.48, 278,209.77 and 78,887.91 is: 118,274.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,562.48 : 278,209.77 = 78,887.91 : x
  2. Step 2: Convert to fraction form
    185,562.48/278,209.77 = 78,887.91/x
  3. Step 3: Cross multiply
    185,562.48x = 278,209.77 × 78,887.91
  4. Step 4: Simplify right side
    185,562.48x = 21,947,387,296.88
  5. Step 5: Solve for x
    x = 21,947,387,296.88/185,562.48
  6. Step 6: Final answer
    x = 118,274.92

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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.