Home / 170,560.64-255,927.36-115,040

Finding the Fourth Proportional to 170,560.64, 255,927.36 and 115,040

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Solution

The fourth proportional to 170,560.64, 255,927.36 and 115,040 is: 172,618.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,560.64 : 255,927.36 = 115,040 : x
  2. Step 2: Convert to fraction form
    170,560.64/255,927.36 = 115,040/x
  3. Step 3: Cross multiply
    170,560.64x = 255,927.36 × 115,040
  4. Step 4: Simplify right side
    170,560.64x = 29,441,883,494.40
  5. Step 5: Solve for x
    x = 29,441,883,494.40/170,560.64
  6. Step 6: Final answer
    x = 172,618.28

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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.