Home / 124,934.82-172,362.30-76,492.80

Finding the Fourth Proportional to 124,934.82, 172,362.30 and 76,492.80

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Solution

The fourth proportional to 124,934.82, 172,362.30 and 76,492.80 is: 105,530.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,934.82 : 172,362.30 = 76,492.80 : x
  2. Step 2: Convert to fraction form
    124,934.82/172,362.30 = 76,492.80/x
  3. Step 3: Cross multiply
    124,934.82x = 172,362.30 × 76,492.80
  4. Step 4: Simplify right side
    124,934.82x = 13,184,474,941.44
  5. Step 5: Solve for x
    x = 13,184,474,941.44/124,934.82
  6. Step 6: Final answer
    x = 105,530.83

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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.