Home / 105,546.97-145,653.73-57,148.07

Finding the Fourth Proportional to 105,546.97, 145,653.73 and 57,148.07

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Solution

The fourth proportional to 105,546.97, 145,653.73 and 57,148.07 is: 78,863.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,546.97 : 145,653.73 = 57,148.07 : x
  2. Step 2: Convert to fraction form
    105,546.97/145,653.73 = 57,148.07/x
  3. Step 3: Cross multiply
    105,546.97x = 145,653.73 × 57,148.07
  4. Step 4: Simplify right side
    105,546.97x = 8,323,829,557.80
  5. Step 5: Solve for x
    x = 8,323,829,557.80/105,546.97
  6. Step 6: Final answer
    x = 78,863.75

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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.