Home / 170,142.76-255,056.22-75,322.36

Finding the Fourth Proportional to 170,142.76, 255,056.22 and 75,322.36

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Solution

The fourth proportional to 170,142.76, 255,056.22 and 75,322.36 is: 112,913.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,142.76 : 255,056.22 = 75,322.36 : x
  2. Step 2: Convert to fraction form
    170,142.76/255,056.22 = 75,322.36/x
  3. Step 3: Cross multiply
    170,142.76x = 255,056.22 × 75,322.36
  4. Step 4: Simplify right side
    170,142.76x = 19,211,436,423.08
  5. Step 5: Solve for x
    x = 19,211,436,423.08/170,142.76
  6. Step 6: Final answer
    x = 112,913.63

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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.