Home / 105,336.63-145,365.97-57,589.86

Finding the Fourth Proportional to 105,336.63, 145,365.97 and 57,589.86

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Solution

The fourth proportional to 105,336.63, 145,365.97 and 57,589.86 is: 79,474.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,336.63 : 145,365.97 = 57,589.86 : x
  2. Step 2: Convert to fraction form
    105,336.63/145,365.97 = 57,589.86/x
  3. Step 3: Cross multiply
    105,336.63x = 145,365.97 × 57,589.86
  4. Step 4: Simplify right side
    105,336.63x = 8,371,605,861.06
  5. Step 5: Solve for x
    x = 8,371,605,861.06/105,336.63
  6. Step 6: Final answer
    x = 79,474.78

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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.