Home / 165,156.88-247,651.44-70,350.40

Finding the Fourth Proportional to 165,156.88, 247,651.44 and 70,350.40

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Solution

The fourth proportional to 165,156.88, 247,651.44 and 70,350.40 is: 105,489.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,156.88 : 247,651.44 = 70,350.40 : x
  2. Step 2: Convert to fraction form
    165,156.88/247,651.44 = 70,350.40/x
  3. Step 3: Cross multiply
    165,156.88x = 247,651.44 × 70,350.40
  4. Step 4: Simplify right side
    165,156.88x = 17,422,377,864.58
  5. Step 5: Solve for x
    x = 17,422,377,864.58/165,156.88
  6. Step 6: Final answer
    x = 105,489.87

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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.