Home / 129,669.20-193,140.10-123,602

Finding the Fourth Proportional to 129,669.20, 193,140.10 and 123,602

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Solution

The fourth proportional to 129,669.20, 193,140.10 and 123,602 is: 184,103.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,669.20 : 193,140.10 = 123,602 : x
  2. Step 2: Convert to fraction form
    129,669.20/193,140.10 = 123,602/x
  3. Step 3: Cross multiply
    129,669.20x = 193,140.10 × 123,602
  4. Step 4: Simplify right side
    129,669.20x = 23,872,502,640.20
  5. Step 5: Solve for x
    x = 23,872,502,640.20/129,669.20
  6. Step 6: Final answer
    x = 184,103.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.