Home / 165,591.12-248,411.52-76,853.76

Finding the Fourth Proportional to 165,591.12, 248,411.52 and 76,853.76

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Solution

The fourth proportional to 165,591.12, 248,411.52 and 76,853.76 is: 115,292.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,591.12 : 248,411.52 = 76,853.76 : x
  2. Step 2: Convert to fraction form
    165,591.12/248,411.52 = 76,853.76/x
  3. Step 3: Cross multiply
    165,591.12x = 248,411.52 × 76,853.76
  4. Step 4: Simplify right side
    165,591.12x = 19,091,359,339.32
  5. Step 5: Solve for x
    x = 19,091,359,339.32/165,591.12
  6. Step 6: Final answer
    x = 115,292.17

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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.