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Finding the Fourth Proportional to 129,535, 194,308.98 and 122,718.04

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Solution

The fourth proportional to 129,535, 194,308.98 and 122,718.04 is: 184,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,535 : 194,308.98 = 122,718.04 : x
  2. Step 2: Convert to fraction form
    129,535/194,308.98 = 122,718.04/x
  3. Step 3: Cross multiply
    129,535x = 194,308.98 × 122,718.04
  4. Step 4: Simplify right side
    129,535x = 23,845,217,180.00
  5. Step 5: Solve for x
    x = 23,845,217,180.00/129,535
  6. Step 6: Final answer
    x = 184,083.20

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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.