Home / 254,705.04-382,137.57-105,015.78

Finding the Fourth Proportional to 254,705.04, 382,137.57 and 105,015.78

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Solution

The fourth proportional to 254,705.04, 382,137.57 and 105,015.78 is: 157,556.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,705.04 : 382,137.57 = 105,015.78 : x
  2. Step 2: Convert to fraction form
    254,705.04/382,137.57 = 105,015.78/x
  3. Step 3: Cross multiply
    254,705.04x = 382,137.57 × 105,015.78
  4. Step 4: Simplify right side
    254,705.04x = 40,130,472,545.09
  5. Step 5: Solve for x
    x = 40,130,472,545.09/254,705.04
  6. Step 6: Final answer
    x = 157,556.65

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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.