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Finding the Fourth Proportional to 173,145.30, 259,730.10 and 98,301.30

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Solution

The fourth proportional to 173,145.30, 259,730.10 and 98,301.30 is: 147,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,145.30 : 259,730.10 = 98,301.30 : x
  2. Step 2: Convert to fraction form
    173,145.30/259,730.10 = 98,301.30/x
  3. Step 3: Cross multiply
    173,145.30x = 259,730.10 × 98,301.30
  4. Step 4: Simplify right side
    173,145.30x = 25,531,806,479.13
  5. Step 5: Solve for x
    x = 25,531,806,479.13/173,145.30
  6. Step 6: Final answer
    x = 147,458.85

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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.