Home / 172,346.36-258,380.10-77,507.10

Finding the Fourth Proportional to 172,346.36, 258,380.10 and 77,507.10

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Solution

The fourth proportional to 172,346.36, 258,380.10 and 77,507.10 is: 116,197.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,346.36 : 258,380.10 = 77,507.10 : x
  2. Step 2: Convert to fraction form
    172,346.36/258,380.10 = 77,507.10/x
  3. Step 3: Cross multiply
    172,346.36x = 258,380.10 × 77,507.10
  4. Step 4: Simplify right side
    172,346.36x = 20,026,292,248.71
  5. Step 5: Solve for x
    x = 20,026,292,248.71/172,346.36
  6. Step 6: Final answer
    x = 116,197.94

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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.