Home / 171,451.48-236,564.76-103,479.52

Finding the Fourth Proportional to 171,451.48, 236,564.76 and 103,479.52

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Solution

The fourth proportional to 171,451.48, 236,564.76 and 103,479.52 is: 142,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,451.48 : 236,564.76 = 103,479.52 : x
  2. Step 2: Convert to fraction form
    171,451.48/236,564.76 = 103,479.52/x
  3. Step 3: Cross multiply
    171,451.48x = 236,564.76 × 103,479.52
  4. Step 4: Simplify right side
    171,451.48x = 24,479,607,813.72
  5. Step 5: Solve for x
    x = 24,479,607,813.72/171,451.48
  6. Step 6: Final answer
    x = 142,778.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.