Home / 170,660.40-255,621.20-123,810

Finding the Fourth Proportional to 170,660.40, 255,621.20 and 123,810

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Solution

The fourth proportional to 170,660.40, 255,621.20 and 123,810 is: 185,447.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,660.40 : 255,621.20 = 123,810 : x
  2. Step 2: Convert to fraction form
    170,660.40/255,621.20 = 123,810/x
  3. Step 3: Cross multiply
    170,660.40x = 255,621.20 × 123,810
  4. Step 4: Simplify right side
    170,660.40x = 31,648,460,772
  5. Step 5: Solve for x
    x = 31,648,460,772/170,660.40
  6. Step 6: Final answer
    x = 185,447.01

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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.