Home / 100,166.22-138,224.13-54,835.52

Finding the Fourth Proportional to 100,166.22, 138,224.13 and 54,835.52

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Solution

The fourth proportional to 100,166.22, 138,224.13 and 54,835.52 is: 75,670.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,166.22 : 138,224.13 = 54,835.52 : x
  2. Step 2: Convert to fraction form
    100,166.22/138,224.13 = 54,835.52/x
  3. Step 3: Cross multiply
    100,166.22x = 138,224.13 × 54,835.52
  4. Step 4: Simplify right side
    100,166.22x = 7,579,592,045.10
  5. Step 5: Solve for x
    x = 7,579,592,045.10/100,166.22
  6. Step 6: Final answer
    x = 75,670.14

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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.