Home / 172,368.30-258,552.45-128,081.55

Finding the Fourth Proportional to 172,368.30, 258,552.45 and 128,081.55

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Solution

The fourth proportional to 172,368.30, 258,552.45 and 128,081.55 is: 192,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,368.30 : 258,552.45 = 128,081.55 : x
  2. Step 2: Convert to fraction form
    172,368.30/258,552.45 = 128,081.55/x
  3. Step 3: Cross multiply
    172,368.30x = 258,552.45 × 128,081.55
  4. Step 4: Simplify right side
    172,368.30x = 33,115,798,552.30
  5. Step 5: Solve for x
    x = 33,115,798,552.30/172,368.30
  6. Step 6: Final answer
    x = 192,122.33

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1.5x scale

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.