Home / 167,663.87-251,492.16-78,868.16

Finding the Fourth Proportional to 167,663.87, 251,492.16 and 78,868.16

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Solution

The fourth proportional to 167,663.87, 251,492.16 and 78,868.16 is: 118,300.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,663.87 : 251,492.16 = 78,868.16 : x
  2. Step 2: Convert to fraction form
    167,663.87/251,492.16 = 78,868.16/x
  3. Step 3: Cross multiply
    167,663.87x = 251,492.16 × 78,868.16
  4. Step 4: Simplify right side
    167,663.87x = 19,834,723,913.63
  5. Step 5: Solve for x
    x = 19,834,723,913.63/167,663.87
  6. Step 6: Final answer
    x = 118,300.53

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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.