Home / 170,447.20-255,388.26-103,685.36

Finding the Fourth Proportional to 170,447.20, 255,388.26 and 103,685.36

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Solution

The fourth proportional to 170,447.20, 255,388.26 and 103,685.36 is: 155,356.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,447.20 : 255,388.26 = 103,685.36 : x
  2. Step 2: Convert to fraction form
    170,447.20/255,388.26 = 103,685.36/x
  3. Step 3: Cross multiply
    170,447.20x = 255,388.26 × 103,685.36
  4. Step 4: Simplify right side
    170,447.20x = 26,480,023,677.87
  5. Step 5: Solve for x
    x = 26,480,023,677.87/170,447.20
  6. Step 6: Final answer
    x = 155,356.17

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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.