Home / 112,572.54-168,898.35-70,404.75

Finding the Fourth Proportional to 112,572.54, 168,898.35 and 70,404.75

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Solution

The fourth proportional to 112,572.54, 168,898.35 and 70,404.75 is: 105,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,572.54 : 168,898.35 = 70,404.75 : x
  2. Step 2: Convert to fraction form
    112,572.54/168,898.35 = 70,404.75/x
  3. Step 3: Cross multiply
    112,572.54x = 168,898.35 × 70,404.75
  4. Step 4: Simplify right side
    112,572.54x = 11,891,246,107.16
  5. Step 5: Solve for x
    x = 11,891,246,107.16/112,572.54
  6. Step 6: Final answer
    x = 105,631.85

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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.