Home / 260,101.37-390,152.04-73,112.87

Finding the Fourth Proportional to 260,101.37, 390,152.04 and 73,112.87

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Solution

The fourth proportional to 260,101.37, 390,152.04 and 73,112.87 is: 109,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,101.37 : 390,152.04 = 73,112.87 : x
  2. Step 2: Convert to fraction form
    260,101.37/390,152.04 = 73,112.87/x
  3. Step 3: Cross multiply
    260,101.37x = 390,152.04 × 73,112.87
  4. Step 4: Simplify right side
    260,101.37x = 28,525,133,429.99
  5. Step 5: Solve for x
    x = 28,525,133,429.99/260,101.37
  6. Step 6: Final answer
    x = 109,669.30

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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.