Home / 138,814.70-191,564.04-75,152.48

Finding the Fourth Proportional to 138,814.70, 191,564.04 and 75,152.48

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Solution

The fourth proportional to 138,814.70, 191,564.04 and 75,152.48 is: 103,710.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,814.70 : 191,564.04 = 75,152.48 : x
  2. Step 2: Convert to fraction form
    138,814.70/191,564.04 = 75,152.48/x
  3. Step 3: Cross multiply
    138,814.70x = 191,564.04 × 75,152.48
  4. Step 4: Simplify right side
    138,814.70x = 14,396,512,684.82
  5. Step 5: Solve for x
    x = 14,396,512,684.82/138,814.70
  6. Step 6: Final answer
    x = 103,710.29

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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.