Home / 105,615.75-145,726.09-60,279.24

Finding the Fourth Proportional to 105,615.75, 145,726.09 and 60,279.24

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Solution

The fourth proportional to 105,615.75, 145,726.09 and 60,279.24 is: 83,171.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,615.75 : 145,726.09 = 60,279.24 : x
  2. Step 2: Convert to fraction form
    105,615.75/145,726.09 = 60,279.24/x
  3. Step 3: Cross multiply
    105,615.75x = 145,726.09 × 60,279.24
  4. Step 4: Simplify right side
    105,615.75x = 8,784,257,529.44
  5. Step 5: Solve for x
    x = 8,784,257,529.44/105,615.75
  6. Step 6: Final answer
    x = 83,171.85

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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.