Home / 170,145.64-255,255.41-51,813.89

Finding the Fourth Proportional to 170,145.64, 255,255.41 and 51,813.89

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Solution

The fourth proportional to 170,145.64, 255,255.41 and 51,813.89 is: 77,732.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,145.64 : 255,255.41 = 51,813.89 : x
  2. Step 2: Convert to fraction form
    170,145.64/255,255.41 = 51,813.89/x
  3. Step 3: Cross multiply
    170,145.64x = 255,255.41 × 51,813.89
  4. Step 4: Simplify right side
    170,145.64x = 13,225,774,588.90
  5. Step 5: Solve for x
    x = 13,225,774,588.90/170,145.64
  6. Step 6: Final answer
    x = 77,732.08

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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.