Home / 126,332.69-189,284.92-76,307.68

Finding the Fourth Proportional to 126,332.69, 189,284.92 and 76,307.68

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Solution

The fourth proportional to 126,332.69, 189,284.92 and 76,307.68 is: 114,332.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,332.69 : 189,284.92 = 76,307.68 : x
  2. Step 2: Convert to fraction form
    126,332.69/189,284.92 = 76,307.68/x
  3. Step 3: Cross multiply
    126,332.69x = 189,284.92 × 76,307.68
  4. Step 4: Simplify right side
    126,332.69x = 14,443,893,104.19
  5. Step 5: Solve for x
    x = 14,443,893,104.19/126,332.69
  6. Step 6: Final answer
    x = 114,332.19

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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.