Home / 105,485.43-145,573.89-60,170.79

Finding the Fourth Proportional to 105,485.43, 145,573.89 and 60,170.79

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Solution

The fourth proportional to 105,485.43, 145,573.89 and 60,170.79 is: 83,037.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,485.43 : 145,573.89 = 60,170.79 : x
  2. Step 2: Convert to fraction form
    105,485.43/145,573.89 = 60,170.79/x
  3. Step 3: Cross multiply
    105,485.43x = 145,573.89 × 60,170.79
  4. Step 4: Simplify right side
    105,485.43x = 8,759,295,236.80
  5. Step 5: Solve for x
    x = 8,759,295,236.80/105,485.43
  6. Step 6: Final answer
    x = 83,037.97

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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.