Home / 129,670.20-193,141.58-123,603

Finding the Fourth Proportional to 129,670.20, 193,141.58 and 123,603

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Solution

The fourth proportional to 129,670.20, 193,141.58 and 123,603 is: 184,104.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,670.20 : 193,141.58 = 123,603 : x
  2. Step 2: Convert to fraction form
    129,670.20/193,141.58 = 123,603/x
  3. Step 3: Cross multiply
    129,670.20x = 193,141.58 × 123,603
  4. Step 4: Simplify right side
    129,670.20x = 23,872,878,712.74
  5. Step 5: Solve for x
    x = 23,872,878,712.74/129,670.20
  6. Step 6: Final answer
    x = 184,104.59

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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.