Home / 114,911.24-172,190.88-77,332.04

Finding the Fourth Proportional to 114,911.24, 172,190.88 and 77,332.04

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Solution

The fourth proportional to 114,911.24, 172,190.88 and 77,332.04 is: 115,879.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,911.24 : 172,190.88 = 77,332.04 : x
  2. Step 2: Convert to fraction form
    114,911.24/172,190.88 = 77,332.04/x
  3. Step 3: Cross multiply
    114,911.24x = 172,190.88 × 77,332.04
  4. Step 4: Simplify right side
    114,911.24x = 13,315,872,019.80
  5. Step 5: Solve for x
    x = 13,315,872,019.80/114,911.24
  6. Step 6: Final answer
    x = 115,879.63

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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.