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Finding the Fourth Proportional to 104,801.76, 144,627 and 57,055.08

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Solution

The fourth proportional to 104,801.76, 144,627 and 57,055.08 is: 78,736.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,801.76 : 144,627 = 57,055.08 : x
  2. Step 2: Convert to fraction form
    104,801.76/144,627 = 57,055.08/x
  3. Step 3: Cross multiply
    104,801.76x = 144,627 × 57,055.08
  4. Step 4: Simplify right side
    104,801.76x = 8,251,705,055.16
  5. Step 5: Solve for x
    x = 8,251,705,055.16/104,801.76
  6. Step 6: Final answer
    x = 78,736.32

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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.