Home / 172,720.60-258,765.16-125,218.05

Finding the Fourth Proportional to 172,720.60, 258,765.16 and 125,218.05

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Solution

The fourth proportional to 172,720.60, 258,765.16 and 125,218.05 is: 187,598.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,720.60 : 258,765.16 = 125,218.05 : x
  2. Step 2: Convert to fraction form
    172,720.60/258,765.16 = 125,218.05/x
  3. Step 3: Cross multiply
    172,720.60x = 258,765.16 × 125,218.05
  4. Step 4: Simplify right side
    172,720.60x = 32,402,068,797.89
  5. Step 5: Solve for x
    x = 32,402,068,797.89/172,720.60
  6. Step 6: Final answer
    x = 187,598.17

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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.