Home / 259,529.10-389,055.81-90,957.53

Finding the Fourth Proportional to 259,529.10, 389,055.81 and 90,957.53

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Solution

The fourth proportional to 259,529.10, 389,055.81 and 90,957.53 is: 136,352.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,529.10 : 389,055.81 = 90,957.53 : x
  2. Step 2: Convert to fraction form
    259,529.10/389,055.81 = 90,957.53/x
  3. Step 3: Cross multiply
    259,529.10x = 389,055.81 × 90,957.53
  4. Step 4: Simplify right side
    259,529.10x = 35,387,556,311.84
  5. Step 5: Solve for x
    x = 35,387,556,311.84/259,529.10
  6. Step 6: Final answer
    x = 136,352.94

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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.