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Finding the Fourth Proportional to 124,551.50, 171,958.83 and 79,917.26

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Solution

The fourth proportional to 124,551.50, 171,958.83 and 79,917.26 is: 110,335.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,551.50 : 171,958.83 = 79,917.26 : x
  2. Step 2: Convert to fraction form
    124,551.50/171,958.83 = 79,917.26/x
  3. Step 3: Cross multiply
    124,551.50x = 171,958.83 × 79,917.26
  4. Step 4: Simplify right side
    124,551.50x = 13,742,478,526.41
  5. Step 5: Solve for x
    x = 13,742,478,526.41/124,551.50
  6. Step 6: Final answer
    x = 110,335.71

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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.