Home / 117,981.75-162,816.24-64,267.21

Finding the Fourth Proportional to 117,981.75, 162,816.24 and 64,267.21

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Solution

The fourth proportional to 117,981.75, 162,816.24 and 64,267.21 is: 88,689.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,981.75 : 162,816.24 = 64,267.21 : x
  2. Step 2: Convert to fraction form
    117,981.75/162,816.24 = 64,267.21/x
  3. Step 3: Cross multiply
    117,981.75x = 162,816.24 × 64,267.21
  4. Step 4: Simplify right side
    117,981.75x = 10,463,745,487.49
  5. Step 5: Solve for x
    x = 10,463,745,487.49/117,981.75
  6. Step 6: Final answer
    x = 88,689.53

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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.