Home / 105,270.20-145,273.24-57,523.55

Finding the Fourth Proportional to 105,270.20, 145,273.24 and 57,523.55

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Solution

The fourth proportional to 105,270.20, 145,273.24 and 57,523.55 is: 79,382.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,270.20 : 145,273.24 = 57,523.55 : x
  2. Step 2: Convert to fraction form
    105,270.20/145,273.24 = 57,523.55/x
  3. Step 3: Cross multiply
    105,270.20x = 145,273.24 × 57,523.55
  4. Step 4: Simplify right side
    105,270.20x = 8,356,631,830.34
  5. Step 5: Solve for x
    x = 8,356,631,830.34/105,270.20
  6. Step 6: Final answer
    x = 79,382.69

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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.