Home / 105,251.56-145,246.98-57,504.90

Finding the Fourth Proportional to 105,251.56, 145,246.98 and 57,504.90

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Solution

The fourth proportional to 105,251.56, 145,246.98 and 57,504.90 is: 79,356.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,251.56 : 145,246.98 = 57,504.90 : x
  2. Step 2: Convert to fraction form
    105,251.56/145,246.98 = 57,504.90/x
  3. Step 3: Cross multiply
    105,251.56x = 145,246.98 × 57,504.90
  4. Step 4: Simplify right side
    105,251.56x = 8,352,413,060.20
  5. Step 5: Solve for x
    x = 8,352,413,060.20/105,251.56
  6. Step 6: Final answer
    x = 79,356.67

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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.