Home / 136,239.90-188,011.06-75,814.44

Finding the Fourth Proportional to 136,239.90, 188,011.06 and 75,814.44

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Solution

The fourth proportional to 136,239.90, 188,011.06 and 75,814.44 is: 104,623.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,239.90 : 188,011.06 = 75,814.44 : x
  2. Step 2: Convert to fraction form
    136,239.90/188,011.06 = 75,814.44/x
  3. Step 3: Cross multiply
    136,239.90x = 188,011.06 × 75,814.44
  4. Step 4: Simplify right side
    136,239.90x = 14,253,953,227.71
  5. Step 5: Solve for x
    x = 14,253,953,227.71/136,239.90
  6. Step 6: Final answer
    x = 104,623.93

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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.