Home / 120,834.94-181,152.61-53,318.90

Finding the Fourth Proportional to 120,834.94, 181,152.61 and 53,318.90

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Solution

The fourth proportional to 120,834.94, 181,152.61 and 53,318.90 is: 79,934.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,834.94 : 181,152.61 = 53,318.90 : x
  2. Step 2: Convert to fraction form
    120,834.94/181,152.61 = 53,318.90/x
  3. Step 3: Cross multiply
    120,834.94x = 181,152.61 × 53,318.90
  4. Step 4: Simplify right side
    120,834.94x = 9,658,857,897.33
  5. Step 5: Solve for x
    x = 9,658,857,897.33/120,834.94
  6. Step 6: Final answer
    x = 79,934.31

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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.