Home / 107,470.72-161,143.56-79,024.68

Finding the Fourth Proportional to 107,470.72, 161,143.56 and 79,024.68

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Solution

The fourth proportional to 107,470.72, 161,143.56 and 79,024.68 is: 118,491.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,470.72 : 161,143.56 = 79,024.68 : x
  2. Step 2: Convert to fraction form
    107,470.72/161,143.56 = 79,024.68/x
  3. Step 3: Cross multiply
    107,470.72x = 161,143.56 × 79,024.68
  4. Step 4: Simplify right side
    107,470.72x = 12,734,318,263.06
  5. Step 5: Solve for x
    x = 12,734,318,263.06/107,470.72
  6. Step 6: Final answer
    x = 118,491.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.