Home / 102,552.88-141,587.04-78,633.60

Finding the Fourth Proportional to 102,552.88, 141,587.04 and 78,633.60

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Solution

The fourth proportional to 102,552.88, 141,587.04 and 78,633.60 is: 108,563.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,552.88 : 141,587.04 = 78,633.60 : x
  2. Step 2: Convert to fraction form
    102,552.88/141,587.04 = 78,633.60/x
  3. Step 3: Cross multiply
    102,552.88x = 141,587.04 × 78,633.60
  4. Step 4: Simplify right side
    102,552.88x = 11,133,498,668.54
  5. Step 5: Solve for x
    x = 11,133,498,668.54/102,552.88
  6. Step 6: Final answer
    x = 108,563.49

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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.