Home / 105,336.99-145,353.83-62,318.09

Finding the Fourth Proportional to 105,336.99, 145,353.83 and 62,318.09

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Solution

The fourth proportional to 105,336.99, 145,353.83 and 62,318.09 is: 85,992.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,336.99 : 145,353.83 = 62,318.09 : x
  2. Step 2: Convert to fraction form
    105,336.99/145,353.83 = 62,318.09/x
  3. Step 3: Cross multiply
    105,336.99x = 145,353.83 × 62,318.09
  4. Step 4: Simplify right side
    105,336.99x = 9,058,173,111.58
  5. Step 5: Solve for x
    x = 9,058,173,111.58/105,336.99
  6. Step 6: Final answer
    x = 85,992.33

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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.