Home / 137,332.69-189,524.48-76,902.77

Finding the Fourth Proportional to 137,332.69, 189,524.48 and 76,902.77

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Solution

The fourth proportional to 137,332.69, 189,524.48 and 76,902.77 is: 106,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,332.69 : 189,524.48 = 76,902.77 : x
  2. Step 2: Convert to fraction form
    137,332.69/189,524.48 = 76,902.77/x
  3. Step 3: Cross multiply
    137,332.69x = 189,524.48 × 76,902.77
  4. Step 4: Simplify right side
    137,332.69x = 14,574,957,584.11
  5. Step 5: Solve for x
    x = 14,574,957,584.11/137,332.69
  6. Step 6: Final answer
    x = 106,128.83

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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.