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Finding the Fourth Proportional to 97,260.81, 134,168.90 and 79,131.80

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Solution

The fourth proportional to 97,260.81, 134,168.90 and 79,131.80 is: 109,160.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,260.81 : 134,168.90 = 79,131.80 : x
  2. Step 2: Convert to fraction form
    97,260.81/134,168.90 = 79,131.80/x
  3. Step 3: Cross multiply
    97,260.81x = 134,168.90 × 79,131.80
  4. Step 4: Simplify right side
    97,260.81x = 10,617,025,494.52
  5. Step 5: Solve for x
    x = 10,617,025,494.52/97,260.81
  6. Step 6: Final answer
    x = 109,160.36

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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.