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Finding the Fourth Proportional to 169,203.15, 253,805.04 and 69,345.47

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Solution

The fourth proportional to 169,203.15, 253,805.04 and 69,345.47 is: 104,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,203.15 : 253,805.04 = 69,345.47 : x
  2. Step 2: Convert to fraction form
    169,203.15/253,805.04 = 69,345.47/x
  3. Step 3: Cross multiply
    169,203.15x = 253,805.04 × 69,345.47
  4. Step 4: Simplify right side
    169,203.15x = 17,600,230,421.68
  5. Step 5: Solve for x
    x = 17,600,230,421.68/169,203.15
  6. Step 6: Final answer
    x = 104,018.34

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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.