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Finding the Fourth Proportional to 133,079.32, 183,673.26 and 79,367.80

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Solution

The fourth proportional to 133,079.32, 183,673.26 and 79,367.80 is: 109,541.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,079.32 : 183,673.26 = 79,367.80 : x
  2. Step 2: Convert to fraction form
    133,079.32/183,673.26 = 79,367.80/x
  3. Step 3: Cross multiply
    133,079.32x = 183,673.26 × 79,367.80
  4. Step 4: Simplify right side
    133,079.32x = 14,577,742,565.03
  5. Step 5: Solve for x
    x = 14,577,742,565.03/133,079.32
  6. Step 6: Final answer
    x = 109,541.76

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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.