Home / 131,197.64-181,051.82-74,609

Finding the Fourth Proportional to 131,197.64, 181,051.82 and 74,609

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Solution

The fourth proportional to 131,197.64, 181,051.82 and 74,609 is: 102,959.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,197.64 : 181,051.82 = 74,609 : x
  2. Step 2: Convert to fraction form
    131,197.64/181,051.82 = 74,609/x
  3. Step 3: Cross multiply
    131,197.64x = 181,051.82 × 74,609
  4. Step 4: Simplify right side
    131,197.64x = 13,508,095,238.38
  5. Step 5: Solve for x
    x = 13,508,095,238.38/131,197.64
  6. Step 6: Final answer
    x = 102,959.89

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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.