Home / 162,025.80-242,649.90-78,822.60

Finding the Fourth Proportional to 162,025.80, 242,649.90 and 78,822.60

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Solution

The fourth proportional to 162,025.80, 242,649.90 and 78,822.60 is: 118,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,025.80 : 242,649.90 = 78,822.60 : x
  2. Step 2: Convert to fraction form
    162,025.80/242,649.90 = 78,822.60/x
  3. Step 3: Cross multiply
    162,025.80x = 242,649.90 × 78,822.60
  4. Step 4: Simplify right side
    162,025.80x = 19,126,296,007.74
  5. Step 5: Solve for x
    x = 19,126,296,007.74/162,025.80
  6. Step 6: Final answer
    x = 118,044.76

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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.