Home / 148,699.18-205,197.87-80,714.62

Finding the Fourth Proportional to 148,699.18, 205,197.87 and 80,714.62

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Solution

The fourth proportional to 148,699.18, 205,197.87 and 80,714.62 is: 111,382.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,699.18 : 205,197.87 = 80,714.62 : x
  2. Step 2: Convert to fraction form
    148,699.18/205,197.87 = 80,714.62/x
  3. Step 3: Cross multiply
    148,699.18x = 205,197.87 × 80,714.62
  4. Step 4: Simplify right side
    148,699.18x = 16,562,468,101.86
  5. Step 5: Solve for x
    x = 16,562,468,101.86/148,699.18
  6. Step 6: Final answer
    x = 111,382.38

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1.5x scale

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.