Home / 100,592.57-138,817.32-55,270.41

Finding the Fourth Proportional to 100,592.57, 138,817.32 and 55,270.41

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Solution

The fourth proportional to 100,592.57, 138,817.32 and 55,270.41 is: 76,272.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,592.57 : 138,817.32 = 55,270.41 : x
  2. Step 2: Convert to fraction form
    100,592.57/138,817.32 = 55,270.41/x
  3. Step 3: Cross multiply
    100,592.57x = 138,817.32 × 55,270.41
  4. Step 4: Simplify right side
    100,592.57x = 7,672,490,595.18
  5. Step 5: Solve for x
    x = 7,672,490,595.18/100,592.57
  6. Step 6: Final answer
    x = 76,272.93

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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.