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Finding the Fourth Proportional to 77,954.52, 116,134.32 and 74,192.88

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Solution

The fourth proportional to 77,954.52, 116,134.32 and 74,192.88 is: 110,530.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,954.52 : 116,134.32 = 74,192.88 : x
  2. Step 2: Convert to fraction form
    77,954.52/116,134.32 = 74,192.88/x
  3. Step 3: Cross multiply
    77,954.52x = 116,134.32 × 74,192.88
  4. Step 4: Simplify right side
    77,954.52x = 8,616,339,667.64
  5. Step 5: Solve for x
    x = 8,616,339,667.64/77,954.52
  6. Step 6: Final answer
    x = 110,530.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.