Home / 105,270.40-145,273.36-57,524.52

Finding the Fourth Proportional to 105,270.40, 145,273.36 and 57,524.52

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Solution

The fourth proportional to 105,270.40, 145,273.36 and 57,524.52 is: 79,383.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,270.40 : 145,273.36 = 57,524.52 : x
  2. Step 2: Convert to fraction form
    105,270.40/145,273.36 = 57,524.52/x
  3. Step 3: Cross multiply
    105,270.40x = 145,273.36 × 57,524.52
  4. Step 4: Simplify right side
    105,270.40x = 8,356,780,302.79
  5. Step 5: Solve for x
    x = 8,356,780,302.79/105,270.40
  6. Step 6: Final answer
    x = 79,383.95

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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.