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Finding the Fourth Proportional to 173,146.92, 259,720.53 and 138,308.01

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Solution

The fourth proportional to 173,146.92, 259,720.53 and 138,308.01 is: 207,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,146.92 : 259,720.53 = 138,308.01 : x
  2. Step 2: Convert to fraction form
    173,146.92/259,720.53 = 138,308.01/x
  3. Step 3: Cross multiply
    173,146.92x = 259,720.53 × 138,308.01
  4. Step 4: Simplify right side
    173,146.92x = 35,921,428,167.84
  5. Step 5: Solve for x
    x = 35,921,428,167.84/173,146.92
  6. Step 6: Final answer
    x = 207,462.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.