Home / 112,492.45-168,683.31-45,914.70

Finding the Fourth Proportional to 112,492.45, 168,683.31 and 45,914.70

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Solution

The fourth proportional to 112,492.45, 168,683.31 and 45,914.70 is: 68,849.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,492.45 : 168,683.31 = 45,914.70 : x
  2. Step 2: Convert to fraction form
    112,492.45/168,683.31 = 45,914.70/x
  3. Step 3: Cross multiply
    112,492.45x = 168,683.31 × 45,914.70
  4. Step 4: Simplify right side
    112,492.45x = 7,745,043,257.38
  5. Step 5: Solve for x
    x = 7,745,043,257.38/112,492.45
  6. Step 6: Final answer
    x = 68,849.45

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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.