Home / 120,784.14-181,151.58-45,878.04

Finding the Fourth Proportional to 120,784.14, 181,151.58 and 45,878.04

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Solution

The fourth proportional to 120,784.14, 181,151.58 and 45,878.04 is: 68,807.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,784.14 : 181,151.58 = 45,878.04 : x
  2. Step 2: Convert to fraction form
    120,784.14/181,151.58 = 45,878.04/x
  3. Step 3: Cross multiply
    120,784.14x = 181,151.58 × 45,878.04
  4. Step 4: Simplify right side
    120,784.14x = 8,310,879,433.30
  5. Step 5: Solve for x
    x = 8,310,879,433.30/120,784.14
  6. Step 6: Final answer
    x = 68,807.70

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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.