Home / 120,329.81-166,072.64-69,332.69

Finding the Fourth Proportional to 120,329.81, 166,072.64 and 69,332.69

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Solution

The fourth proportional to 120,329.81, 166,072.64 and 69,332.69 is: 95,689.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,329.81 : 166,072.64 = 69,332.69 : x
  2. Step 2: Convert to fraction form
    120,329.81/166,072.64 = 69,332.69/x
  3. Step 3: Cross multiply
    120,329.81x = 166,072.64 × 69,332.69
  4. Step 4: Simplify right side
    120,329.81x = 11,514,261,689.58
  5. Step 5: Solve for x
    x = 11,514,261,689.58/120,329.81
  6. Step 6: Final answer
    x = 95,689.19

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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.